Presented a paper entitled , New sub-classes of bi-univalent functions defined by subordination at the International Conference on Mathematics 2015 (ICM-2015) held on 26th November 2015 organized by Department of Mathematics, University of Kerala, Trivandrum and the same was published in Mathematical Sciences International Research Journal, 4(2), (2015), 453-456.

Presented a paper entitled , Coefficient inequality for some subclass of meromorphic functions at the International Workshop and Conference on Analysis and Applied Mathematics 2016 (IWCAAM-2016) held on 8th June 2016 organized by Department of Mathematics, National Institute of Technology, Trichy and the same was published in Advances in Theoretical and Applied Mathematics, 11(3), (2016), 275-279.

Presented a paper entitled , Second Hankel determinant for subclass of bi-univalent functions involving the Chebyshev polynomials at the First International Symposium on Geometric Function Theory organized by SSN College of Engineering, Kalavakkam, Chennai (India) during December 13- 14, 2018 and the same was published in An. Univ. Oradea Fasc. Mat. 27(1), (2020), 5-14.

Presented a paper entitled , Second Hankel determinant for a certain subclass of bi-univalent functions at the Second International Symposium on Geometric Function Theory organized by SSN College of Engineering, Kalavakkam, Chennai (India) during December 23-24, 2019 .

Karthiyayini. O and Sivasankari. V, New subclasses of bi-univalent functions defined using convolution structure, International journal of Mathematical Archive, 6(12), (2015), 57-61.

Karthiyayini. O and Sivasankari. V, Subordination results for a class of γ� spirallike functions, An. Univ. Oradea Fasc. Mat. 24(1), (2017), 19-24.

Karthiyayini. O and Sivasankari. V, A new sub-class of meromorphic function, Int. J. Comp. Mat. Sci. 6(7), (2017), 8-15.

Karthiyayini. O and Sivasankari. V, A new subclass of meromorphic bi-univalent functions associated with linear operator, Int. J. Pure. Appl. Math. 10(2), (2017), 141-146.

Karthiyayini. O and Sivasankari. V, A new subclass of bi-univalent functions associated with Chebyshev polynomial, Asia Pacific Journal of Mathematics, 5(2), (2018), 226-232.

Karthiyayini. O and Sivasankari. V, A new subclass of bi-univalent function defined using convolution, Palestine Journal of Mathematics, 8 (1), (2019), 229-234.

Sivasankari. V, Karthiyayini. O and Magesh. N , Certain subclass of bi-univalent functions defined using the Chebyshev polynomials, Afrika Mathematica, 32(1),(2021),89-103 .

Kanas. S, Sivasankari.V, Karthiyayini.O, Sivasubramanian.S, Second Hankel determinant for a certain subclass of Bi-close to Convex Functions defined by Kaplan, Symmetry, 13(4), (2021),567.