Aryabhata, a renowned mathematician and astronomer, is credited with developing the concept of zero and the decimal system in the 5th century.

Jantar Mantar, an astronomical observatory, was constructed by Maharaja Jai Singh II in the 18th century. It consists of several architectural structures used for astronomical observations.

Sushruta, a renowned surgeon, is famous for his contributions to the field of surgery. He is considered one of the fathers of surgery and is known for his surgical techniques and instruments.

Rasaratnakara, written by Nagarjuna, is a comprehensive treatise on metallurgy and alchemy. It covers various aspects of metal extraction, purification, and alloying techniques.

Baudhayana, an ancient Indian mathematician, is credited with developing the concept of the Pythagorean theorem around 800 BCE, predating Pythagoras' discovery.

Nilakantha Somayaji, a renowned astronomer and mathematician, proposed a heliocentric model of the solar system in the 15th century, challenging the prevailing geocentric model.

Kashyapa, an ancient Indian physician, is known for his contributions to the field of pediatrics. His work, the Kashyapa Samhita, covers various aspects of child health and diseases.

Manasara, written by an unknown author, is a comprehensive treatise on architecture. It covers various aspects of temple construction, town planning, and architectural principles.

Pingala, an ancient Indian mathematician, is credited with developing the concept of the Fibonacci sequence in the 2nd century BCE, centuries before Fibonacci's discovery.

Aryabhata developed a method for calculating the circumference of the Earth using trigonometry. His method was more accurate than previous estimates.

Susruta, a renowned surgeon, is also known for his contributions to the field of ophthalmology. He described various eye diseases and surgical techniques for treating them.

Salakatantra, written by Nakula, is a comprehensive treatise on veterinary science. It covers various aspects of animal health, diseases, and treatment methods.

Halayudha, an ancient Indian mathematician, developed the concept of the Pascal's triangle in the 10th century, centuries before Pascal's discovery.

Lalla, a renowned astronomer and mathematician, developed a method for calculating the time of sunrise and sunset. Her work, the Siddhāntaśiromani, is a significant contribution to Indian astronomy.