Aryabhata (476-550 CE) is widely regarded as the father of Indian mathematics. He made significant contributions to arithmetic, algebra, trigonometry, and astronomy.

Brahmagupta (598-668 CE) developed the Fibonacci sequence, which is a series of numbers where each number is the sum of the two preceding ones.

Aryabhata proposed the heliocentric model of the solar system in the 5th century CE, centuries before Copernicus.

Sushruta (6th century BCE) is considered one of the greatest surgeons of ancient India. He is known for his contributions to plastic surgery, cataract surgery, and orthopedic surgery.

The crucible steel process was developed by Indian metallurgists in the 6th century BCE.

Kautilya, also known as Chanakya and Vishnu Gupta, wrote the treatise 'Arthashastra' in the 4th century BCE.

Brahmagupta developed the concept of zero in the 7th century CE.

Aryabhata developed the theory of planetary motion in the 5th century CE.

Charaka (2nd century BCE) is considered one of the greatest physicians of ancient India. He is known for his contributions to the field of Ayurveda.

The damascus steel process was developed by Indian metallurgists in the 6th century BCE.

Kamandaki wrote the treatise 'Kamandakiya Nitisara' in the 4th century BCE.

Brahmagupta developed the concept of negative numbers in the 7th century CE.

Aryabhata developed the theory of the precession of the equinoxes in the 5th century CE.

Jivaka Komarabhacca (5th century BCE) is considered one of the greatest physicians of ancient India. He is known for his contributions to the field of Unani medicine.

The wootz steel process was developed by Indian metallurgists in the 6th century BCE.