Explanation:

Kalaripayattu, also known simply as Kalari, is an Indian martial art that originated in modern-day Kerala, a state on the southwestern coast of India. Kalaripayattu is held in high regard by martial artists due to its long-standing history within Indian martial arts. It is believed to be the oldest surviving martial art in India.
Silambam is an ancient martial art of Tamil Nadu. “I think it is one of the oldest martial arts in the world—it is over 5,000 years old," says Pandian.
Gatka is the name of an Indian martial art associated with the Sikhs of the Punjab who practice an early variant of the martial art. It is a style of stick-fighting, with wooden sticks intended to simulate swords.
Mukna is a form of folk wrestling from the north-east Indian state of Manipur. It is popular in Imphal, Thoubal and Bishnupur. The game is generally played on the last day of the Lai Haraoba festival and is an intrinsic part of the ceremonial functions.