When many cultures were only nomadic forest dwellers over 5000 years ago, Indians established Harappan culture in Sindhu Valley (Indus Valley Civilization).

• The place value system, the decimal system was developed in India in 100 BC.
• Ayurveda is the earliest school of medicine known to humans. Charaka, the father of medicine consolidated Ayurveda 2500 years ago. Today, Ayurveda is fast regaining its rightful place in our civilization.
• The art of Navigation was born in the river Sindh 6000 years ago. The very word Navigation is derived from the Sanskrit word NAVGATIH. The word navy is also derived from Sanskrit 'Nou'.
• Bhaskaracharya calculated the time taken by the earth to orbit the sun hundreds of years before the astronomer Smart.; Time taken by earth to orbit the sun: (5th century)365.258756484 days.
• The value of pi was first calculated by Budhayana, and he explained the concept of what is known as the Pythagorean Theorem. He discovered this in the 6th century long before the European mathematicians.
• Algebra, trigonometry and calculus came from India; Quadratic equations were by Sridharacharya in the 11th century ; The largest numbers the Greeks and the Romans used were (10 to the power of 6) whereas Hindus used numbers as big as (10 to the power of 53) with specific names as early as 5000 BC during the Vedic period. Even today, the largest used number is Tera 1012 (10 to the power of 12).
• According to the Gemological Institute of America, up until 1896, India was the only source for diamonds to the world.
• USA based IEEE has proved what has been a century-old suspicion in the world scientific community that the pioneer of Wireless communication was Prof. Jagdeesh Bose and not Marconi.
• The earliest reservoir and dam for irrigation was built in Saurashtra. According to Saka King Rudradaman I of 150 BC a beautiful lake called 'Sudarshana' was constructed on the hills of Raivataka during Chandragupta Maurya's time.
• Sushruta is the father of surgery. 2600 years ago he and health scientists of his time conducted complicated surgeries like cesareans, cataract, artificial limbs, fractures, urinary stones and even plastic surgery and brain surgery. Usage of anesthesia was well known in ancient India. Over 125 surgical equipment were used. Deep knowledge of anatomy, physiology, etiology, embryology, digestion, metabolism, genetics and immunity is also found in many texts.