The Charaka Samhita, attributed to the sage Charaka, is an ancient Indian medical text that deals with various aspects of medicine, including diagnosis, treatment, and surgery.

Susruta, a renowned ancient Indian surgeon, is often referred to as the 'Father of Indian Surgery' for his contributions to the field of surgery, as described in his text, the Susruta Samhita.

Aryabhata, an ancient Indian mathematician and astronomer, is credited with developing the concept of zero and incorporating it into the Indian number system.

Jantar Mantar is a collection of astronomical observatories built by Maharaja Jai Singh II in the 16th century. It consists of several instruments used for observing celestial bodies and measuring time.

Vikram Sarabhai, often referred to as the 'Father of the Indian Space Program,' played a pivotal role in establishing India's space research and technology initiatives.

Aryabhata was India's first artificial satellite, launched in 1975. It was named after the ancient Indian mathematician and astronomer Aryabhata.

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

Chandrayaan-1 was India's first lunar mission, launched in 2008. It successfully orbited the Moon and collected valuable scientific data.

Homi J. Bhabha was a renowned Indian nuclear physicist who played a significant role in establishing India's nuclear research and development program.

Mangalyaan, also known as the Mars Orbiter Mission, was India's first interplanetary mission, launched in 2013. It successfully reached Mars and continues to orbit the planet.

Jagadish Chandra Bose was a renowned Indian scientist known for his pioneering work in the field of botany and plant physiology.

Gaganyaan is India's first manned space mission, planned to launch in the near future. It aims to send a crew of three astronauts into space.

The Arthashastra, attributed to Kautilya, is an ancient Indian text that covers various aspects of statecraft, including metallurgy and the extraction of metals.

P.C. Ray, a renowned Indian chemist, is often referred to as the 'Father of Indian Chemistry' for his contributions to the field, including his work on the synthesis of organic compounds.

S.N. Bose, a renowned Indian physicist, is known for his contributions to the field of quantum mechanics, particularly for his work on the Bose-Einstein statistics.