Manisha was selected for the India Under-17 National Squad to play the
2018 BRICS U-17 Football Cup which was held in
South Africa. She scored a goal against China Under-17, however, her side ended up losing 2–1. Manisha was then promoted to the India Under-19 National Team. She received public attention when she delivered a memorable performance in India's inspiring win over Thailand in the
AFC U-19 Women's Championship Qualifiers. She scored a hat-trick in the same tournament against Pakistan which resulted in the victory of the India side with a big margin of 18–0. Manisha got her senior team call-up for the match against Hong Kong in January 2019 at the age of 17. Kalyan made her national team debut against
Indonesia in January 2019, while she maiden goal against
Bangladesh in the
2019 SAFF Women's Championship. She scored her third goal against
UAE on 2 October 2021 as India won the match with a score of 4–1. With India, Kalyan went to Brazil for the
2021 International Women's Football Tournament of Manaus. On 26 November 2021, she created history after scoring a goal against
Brazil in their 6–1 defeat at the
2021 International Women's Football Tournament of Manaus. In February 2024, she appeared with India at the
2024 Turkish Women's Cup, in which they ended the campaign as runners-up. During India's final
2026 AFC Asian Cup group stage fixture against
Chinese Taipei, Kalyan scored a "thundering" free-kick from 30 yards, with the ball crossing the line after bouncing off the underside of the crossbar. Despite her goal, India lost 1-3 and was eliminated from the tournament. == Style of play ==