The Rigveda, one of the four Vedas, contains hymns that describe various physical phenomena, such as the movement of the sun and the moon, the nature of light, and the properties of matter.

Aryabhata, a 5th-century mathematician and astronomer, is often regarded as the father of Indian physics. He made significant contributions to astronomy, mathematics, and physics, including the development of the heliocentric model of the solar system.

Ghati, a unit of time equal to 24 minutes, is still used in traditional Indian calendars and horoscopes.

Nagarjuna, a 2nd-century philosopher, is known for his concept of 'sunyata' or emptiness, which is a central tenet of Mahayana Buddhism.

Vastu Shastra, an ancient Indian text, provides guidelines for architecture, construction, and design, and includes discussions on physics and engineering principles.

Brahmagupta, a 7th-century mathematician, is credited with the development of the concept of the 'zero' and the decimal system, which revolutionized mathematics.

Jantar Mantar, an astronomical observatory built in the 18th century, is a UNESCO World Heritage Site and a testament to the advanced astronomical knowledge of ancient India.

Subrahmanyan Chandrasekhar, a Nobel laureate in Physics, proposed the 'Big Bang' theory of the origin of the universe in the 1940s.

Hasta, a unit of length equal to approximately 18 inches, is still used in traditional Indian measurements, particularly in architecture and construction.

C. V. Raman won the Nobel Prize in Physics in 1930 for his discovery of the Raman effect, which is the inelastic scattering of light.

Charaka Samhita, an ancient Indian medical text, is a comprehensive treatise on medicine that includes discussions on anatomy, surgery, and pharmacology.

Meghnad Saha, a 20th-century physicist, proposed the 'Saha ionization equation', which is used to study the ionization of atoms in stellar atmospheres.

Tola, a unit of mass equal to approximately 11.6 grams, is still used in traditional Indian measurements, particularly in the trade of precious metals and spices.

Subrahmanyan Chandrasekhar, a Nobel laureate in Physics, is known for his work on black holes and gravitational waves.

Surya Siddhanta, an ancient Indian astronomical text, is a comprehensive treatise on astronomy that includes discussions on planetary motion, eclipses, and constellations.