1. Scindhiya Laxmi, **S. K. Gupta, **Sumit Kumar, Intuitionistic fuzzy least square twin support vector machines for pattern classification, Annals of Operations Research, (2022), **(JCR rank: Q1)**

2. Scindhiya Laxmi, **S. K. Gupta, **Multi-category intuitionistic fuzzy twin support vector machines with an application to plant leaf recognition, Engineering Applications of Artificial Intelligence, 110 (2022) 104687 (**JCR rank: Q1)**

3. Scindhiya Laxmi, **S. K. Gupta**, Sumit Kumar, Intuitionistic fuzzy proximal support vector machine for multicategory classification problems, Soft Computing, Soft Computing (2021) https://doi.org/10.1007/s00500-021-06193-3 **(Impact factor: 3.050, JCR rank: Q2)**

4. Sumati Mahajan, **S. K. Gupta**, On inexact quadratic programming problems involving mixed terms with an application to tea industry, Computers and Industrial Engineering, accepted for publication, 156 (2021) 107264 (**Impact factor: 4.135, JCR rank: Q1)**

5. Sumati Mahajan, **S. K. Gupta**, On optimistic, pessimistic and mixed approaches under different membership functions for fully intuitionistic fuzzy multi-objective nonlinear programming problems, Expert Systems with Applications, 168 (2021), Article 114309 (**Impact factor: 5.452, JCR rank: Q1)**

6. Sumati Mahajan, **S. K. Gupta**, On fully intuitionistic fuzzy multiobjective transportation problems using different membership functions, Annals of Operations Research, 296 (2021), 211-241 **(Impact factor: 2.583, JCR rank: Q2)**

7. Sumati Mahajan, **S. K. Gupta**, Development and analysis of a sustainable garbage disposal model for environmental management under uncertainty, Science of Total Environment, 709 (2020), Article 135037 (**Impact factor: 6.551, JCR rank: Q1)**

8. Scindhiya Laxmi, **S. K. Gupta**, Intuitionistic Fuzzy proximal support vector machines for pattern classification, Neural Processing Letters, 51 (2020), 2701–2735 **(Impact factor: 2.891, JCR rank: Q2)**

9. Manisha Malik, **S. K. Gupta**, Goal programming technique for solving fully interval-valued intuitionistic fuzzy multiple objective transportation problems, Soft Computing, 24 (2020), 13955–13977 **(Impact factor: 3.050, JCR rank: Q2)**

10. Izhar Ahmad, **S. K. Gupta**, Bhupedra K. Mishra, Invex and quasi-invex NCP functions and their properties, Maejo International Journal of Science and Technology, 14 (2020), 177-183** (Impact factor: 0.326, JCR rank: Q4)**

11. Sumati Mahajan, **S. K. Gupta, **Methods to solve QPPs with fuzzy parameters and fuzzy variables, Journal of Intelligent & Fuzzy Systems, 37 (2019), 2757–2767 **(Impact factor: 1.851, JCR rank: Q3)**

12. I. P. Debnath, **S. K. Gupta**, The Karush-Kuhn-Tucker conditions for multiple objective fractional interval valued optimization problems, RAIRO-OPERATONS RESEARCH, 54 (2019), 1161-1188 **(Impact factor: 1.025, JCR rank: Q4)**

13. **S. K. Gupta,** D. Dangar, I. Ahmad, S. Al-Homidan, A fuzzy multiple objective nonlinear optimization problem and its duality results, Journal of Intelligent & Fuzzy Systems, 36 (2019), 1361-1373 **(Impact factor: 1.851, JCR rank: Q3)**

14. I. P. Debnath, **S. K. Gupta**, Exponential membership function and duality gaps for I-fuzzy linear programming problems, Iranian Journal of Fuzzy Systems, 16 (2019), 147-163 (**Impact factor: 2.276, JCR rank: Q1)**

15. Ramu Dubey, **S. K. Gupta, **On duality for a second-order multiobjective fractional programming problem involving type-I functions, Georgian Mathematical Journal, 26 (2019), 393-404 **(Impact factor: 0.5, JCR rank: Q4)**

16. Indira P. Debanth, **S. K. Gupta, **Necessary and sufficient optimality conditions for fractional interval valued optimization problems, Decision Science in action, (2019), 155-173

17. I. P. Debnath, **S. K. Gupta**, Higher order duality relations for multiobjective fractional problems involving support functions, Bulletin of the Malaysian Mathematical Society, 42 (2019), 1255-1279 **(Impact factor: 0.856, JCR rank: Q2)**

18. Indira P. Debnath and **S.K. Gupta**, Duality for the class of a multiobjective problem with support functions under K-G_{f} invexity, Bulletin of the Iranian Mathematical Society, 43 (2017), 2233-2258 **(Impact factor: 0.357, JCR rank: Q4)**

19. Indira P. Debnath and **S.K. Gupta**, Efficiency and duality for a vector of quotients of curvilinear functionals on the first order jet bundle. Optimal Control, Applications and Methods, 38 (2017), 1227-1238 **(Impact factor: 1.252, JCR rank: Q3)**

20. I. P. Debanth, **S. K. Gupta**, D. Dangar, Remarks on duality for second order minimax fractional programming with B-(p,r) invex functions, Opsearch, 55 (2017), 196-201 **(Impact factor: 0.36, Scimago: Q2)**

21. Indira P. Debnath, **S.K. Gupta**, I. Ahmad, A note on strong duality theorem for a multiobjective higher order nondifferentiable symmetric dual programs. Opsearch, 2016, 53(1), 151-156. **(Impact factor: 0.36, Scimago: Q2)**

22. Sarita Sharma, **S.K. Gupta, **Higher-order-V-invexity and duality for vector optimization problems, Rendiconti del Circolo Matematico di Palermo, 65 (2016) 351-364 **(Impact factor: 0.3, Scimago: Q3)**

23. **S. K. Gupta**, D. Dangar, Generalized multiobjective symmetric duality under second-order (F, alpha, rho, d)-convexity, Acta Mathematicae Applicatae Sinica, English Series, 31 (2015), 1–14 **(Impact factor: 0.618, JCR rank: Q4)**

24. Ramu Dubey, **S. K. Gupta**, M.A. Khan, Optimality and duality results for a nondifferentiable multiobjective fractional programming problems, Journal of Inequalities and Applications, 2015:354 **(Impact factor: 1.470, JCR rank: Q2)**

25. Indira P. Debnath, **S. K. Gupta**, S. Kumar, Symmetric duality for a higher order nondifferentiable multiobjective programming problem, Journal of Inequalities and Applications, 2015:3 **(Impact factor: 1.470, JCR rank: Q2)**

26. **S. K. Gupta**, D. Dangar, N. Kailey, S. Kumar, Second-Order nondifferentiable multiobjective mixed symmetric dual programs over cones, Journal of Mathematical Modelling and Algorithms in Operations Research, 14 (2015), 103–123 **(Impact factor: 0.36, Scimago: Q3)**

27. B. Dutta, **S. K. Gupta, **On nash equibrium strategy of two-person zero sum games with trapezoidal fuzzy payoffs, Fuzzy Information and Engineering 6 (2014), 299-314 **(Impact factor: 0.27, Scimago: Q2)**

28. **S. K. Gupta**, D. Dangar, Duality for a class of fuzzy nonlinear optimization problem under generalized convexity, Fuzzy Optimization and Decision Making, 13 (2014) 131–150, (DOI 10.1007/s10700-013-9176-7) **(Impact factor: 4.319, JCR rank: Q1)**

29. **S. K. Gupta**, D. Dangar, On second-order duality for nondifferentiable minimax fractional programming, Journal of Computational and Applied Mathematics, 255 (2014), 878–886 **(Impact factor: 2.037, JCR rank: Q1)**

30. N. Kailey, **S. K. Gupta**, Duality for mixed second-order programs with multiple arguments, Filomat, 28 (2014), 397–410 **(Impact factor: 0.848, JCR rank: Q3)**

31. **S. K. Gupta**, D. Dangar, I. Ahmad, On second order duality for nondifferentiable minimax fractional programming problems involving type-I functions, ANZIAM Journal, 55 (EMAC2013) (2014) C 479–C494 **(Impact factor: 0.581, JCR rank: Q4)**

32. **S. K. Gupta, **N. Kailey**, **Second-order multiobjective symmetric duality involving cone-bonvex functions**, **Journal of Global Optimization, 55 (2013), 125-140 (**Impact factor: 1.805, JCR rank: Q3)**

33. N. Kailey**, ****S. K. Gupta**, Duality for a class of symmetric nondifferentiable mutliobjective fractional variational problems with generalized (F, alpha, rho, d)-convexity, Mathematical and Computer Modeling, 57 (2013), 1453-1465 **(Impact factor: 1.366, JCR rank (2015): Q1)**

34. D. Dangar, **S. K. Gupta**, On second-order duality for a class of nondifferentiable minimax fractional programming problem with (C, alpha, rho, d)-convexity, Journal of Applied Mathematics and Computing, 43 (2013), 11–30 **(Impact factor: 1.242, JCR rank: Q1)**

35. **S. K. Gupta**, N. Kailey, Multiobjective second-order mixed symmetric duality with a square root term, Applied Mathematics and Computation, 218 (2012), 7602-7613 **(Impact factor: 3.472, JCR rank: Q1)**

36. **S. K. Gupta,** D. Dangar, Duality for second-order symmetric multiobjective programming with cone constraints, International Journal of Mathematics in Operational Research ,4 (2012), 128-151

37. N. Kailey**, ****S. K. Gupta**, Nondifferentiable second-order mixed symmetric duality with cone constraints, Maejo International Journal of Science and Technology, 6 (2012), 356-371 **(Impact factor: 0.326, JCR rank: Q4)**

38. **S. K. Gupta**, N. Kailey**, **S. Kumar, Duality for nondifferentiable multiobjective higher-order symmetric programs over cones involving generalized (F, alpha, rho, d)-convexity, Journal of inequalities and applications, 298 (2012), 1-16, doi:10.1186/1029-242X-2012-298 **(Impact factor: 1.470, JCR rank: Q2)**

39. **S. K. Gupta, **D. Dangar, S. Kumar**, **Second-order duality for a nondifferentiable minimax fractional programming under generalized *α*-univexity, Journal of Inequalities and Applications, 2012:187 (31 August 2012) **(Impact factor: 1.470, JCR rank: Q2)**

40. **S. K. Gupta**, N. Kailey, Nondifferentiable multiobjective second-order symmetric duality, Optimization Letters, 5 (2011), 125-139 **(Impact factor: 1.502, JCR rank: Q2)**

41. T. R. Gulati, **S. K. Gupta**, Nondifferentiable second-order minimax mixed integer symmetric duality, Journal of the Korean Mathematical Society, 48 (2011), 13-21 **(Impact factor: 0.63, JCR rank: Q3)**

42. **S. K. Gupta**, N. Kailey, M. K. Sharma, Mond-Weir type nondifferentiable multiobjective second-order symmetric duality with cone constraints, International Journal of Mathematics in Operational Research, 3 (2011), 414 – 430

43. T. R. Gulati, Geeta, **S. K. Gupta**, Nondifferentiable multiobjective symmetric dual programs over cones, Nonlinear Analysis: Theory, Methods & Applications, 74 (2011), 3861-3869 **(Impact factor: 1.587, JCR rank: Q1)**

44. Ravi P. Agarwal, Izhar Ahmad, **S. K. Gupta**, A note on higher-order nondifferentiable symmetric duality in multiobjective programming, Applied Mathematics Letters, 24 (2011), 1308-1311 **(Impact factor: 3.848, JCR rank: Q1)**

45. Ravi P. Agarwal, Izhar Ahmad, **S. K. Gupta**, N. Kailey, Generalized Second-Order Mixed Symmetric Duality in Nondifferentiable Mathematical Programming, Abstract and Applied Analysis, 2011 (2011), Article ID 103597, 14 pages **(Impact factor: 1.274, JCR rank (2013): Q1)**

46. N. Kailey, **S. K. Gupta**, D. Dangar, Mixed second order symmetric duality with cone constraints, Nonlinear Analysis: Real World Applications, 12 (2011) 3373-3383 **(Impact factor: 2.072, JCR rank: Q1)**

47. I. Ahmad, **S. K. Gupta**, Anurag Jayswal, On sufficiency and duality for non-smooth multiobjective programming problems involving generalized V–r-invex functions, Nonlinear Analysis: Theory, Methods & Applications, 74 (2011), 5920-5928 **(Impact factor: 1.587, JCR rank: Q1)**

48. I. Ahmad, **S. K. Gupta**, N. Kailey, R. P. Agarwal, Duality in nondifferentiable minimax fractional programming with B-(p, r)-invexity, Journal of Inequalities and Applications, 2011:75 (30 September 2011), **(Impact factor: 1.470, JCR rank: Q2)**

49. **S. K. Gupta**, N. Kailey, A note on multiobjective symmetric duality, European Journal of Operational Research, 201 (2010), 649-651 **(Impact factor: 4.213, JCR rank: Q1)**

50. T. R. Gulati, H. Saini, **S. K. Gupta**, Second-order multiobjective symmetric duality with cone constraints, European Journal of Operational Research, 205 (2010) 247–252 **(Impact factor: 4.213, JCR rank: Q1)**

51. **S. K. Gupta**, N. Kailey, M. K. Sharma, Multiobjective second order nondifferentiable symmetric duality involving convex functions, Journal of Applied Mathematics and Informatics, 28 (2010) 1395-1408

52. **S. K. Gupta**, N. Kailey, M. K. Sharma, Higher-order (F, alpha, rho, d)-convexity and symmetric duality in multiobjective programming, Computers and Mathematics with Applications 60 (2010), 2373–2381 **(Impact factor: 3.370, JCR rank: Q1)**

53. **S**.** K. Gupta**, Anurag Jaiswal, Multiobjective higher-order symmetric duality involving generalized cone-invex functions, Computers and Mathematics with Applications 60 (2010) 3187-3192 **(Impact factor: 3.370, JCR rank: Q1)**

54. **S. K. Gupta, **Debasis Dangar, Duality in fuzzy quadratic programming with exponential membership functions, Fuzzy Information and Engineering, 4 (2010), 327-336 **(Impact factor: 0.27, Scimago: Q2)**

55. T. R. Gulati, **S. K. Gupta**, Higher-order symmetric duality with cone constraints, Applied Mathematics Letters, 22 (2009), 776-781 **(Impact factor: 3.848, JCR rank: Q1)**

56. T. R. Gulati, **S. K. Gupta**, I. Ahmad, Second-order symmetric duality with cone constraints, Journal of Computational and Applied Mathematics, 220 (2008), 347-354 **(Impact factor: 2.037, JCR rank: Q1)**

57. T. R. Gulati, **S. K. Gupta**, Higher order symmetric duality with generalized F-convexity, Journal of Mathematical Analysis and Applications, 329 (2007) 229-237 **(Impact factor: 1.220, JCR rank: Q1)**

58. T. R. Gulati, **S. K. Gupta**, Second-order minimax mixed integer symmetric duality, International Journal of Operation Research, 4 (2007), 1-8 **(Impact factor: 0.32, Scimago: Q3)**

59. T. R. Gulati, **S. K. Gupta**, A note on Mond Weir type symmetric duality, Asia-Pacific Journal of Operational Research, 24 (2007), 737-74 **(Impact factor: 0.757, JCR rank: Q4) **

60. T. R. Gulati, **S. K. Gupta**, Wolfe type second-order symmetric duality in nondifferentiable programming, Journal of Mathematical Analysis and Applications, 310 (2005), 247-253 **(Impact factor: 1.220, JCR rank: Q1)**