Aryabhata is widely regarded as the father of Indian mathematics for his contributions to astronomy, trigonometry, and algebra.

Brahmagupta is credited with developing the concept of zero and introducing it into the Indian number system.

Bhaskara II was the first mathematician to describe the Fibonacci sequence, which is a series of numbers where each number is the sum of the two preceding ones.

Bhaskara II also developed the Pascal's triangle, which is a triangular array of binomial coefficients.

Aryabhatiya is the name of the mathematical treatise written by Aryabhata, which covers topics such as arithmetic, algebra, trigonometry, and astronomy.

Aryabhata developed the concept of the sine function, which is used to calculate the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.

Brahmasphuta Siddhanta is the name of the mathematical treatise written by Brahmagupta, which covers topics such as arithmetic, algebra, trigonometry, and astronomy.

Aryabhata also developed the concept of the cosine function, which is used to calculate the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.

Siddhanta Shiromani is the name of the mathematical treatise written by Bhaskara II, which covers topics such as arithmetic, algebra, trigonometry, and astronomy.

Aryabhata developed the concept of the tangent function, which is used to calculate the ratio of the length of the opposite side to the length of the adjacent side in a right triangle.

Pancasiddhantika is the name of the mathematical treatise written by Varahamihira, which covers topics such as arithmetic, algebra, trigonometry, and astronomy.

Aryabhata developed the concept of the secant function, which is used to calculate the ratio of the length of the hypotenuse to the length of the adjacent side in a right triangle.

Lilavati is the name of the mathematical treatise written by Lilavati, which covers topics such as arithmetic, algebra, trigonometry, and astronomy.

Aryabhata developed the concept of the cosecant function, which is used to calculate the ratio of the length of the hypotenuse to the length of the opposite side in a right triangle.

Siddhanta Shiromani is the name of the mathematical treatise written by Siddhanta Shiromani, which covers topics such as arithmetic, algebra, trigonometry, and astronomy.