An efficient technique for breaking of coloured Hindi CAPTCHA. - Kumar, Mohinder; Jindal, Manish Kumar; Kumar, Munish (Soft Comput., 2023)

Design of innovative CAPTCHA for hindi language. - Kumar, Mohinder; Jindal, Manish Kumar; Kumar, Munish (Neural Comput. Appl., 2022)

Benchmarks for Designing a Secure Devanagari CAPTCHA. - Kumar, Mohinder; Jindal, Manish Kumar (SN Comput. Sci., 2021)

A Novel Attack on Monochrome and Greyscale Devanagari CAPTCHAs. - Kumar, Mohinder; Jindal, Manish Kumar; Kumar, Munish (ACM Trans. Asian Low Resour. Lang. Inf. Process., 2021)