Indian inventions and discoveries:

Here are the list of contribution India has given to the world in different field.From ancient to modern era Indian have given a lot in the field of science and technology.so feel proud of being Indian.

Civil Engineering:

1. Rust Free Iron pillar of Delhi: It is situated in Qutub complex at Mehrauli in Delhi.It is famous for rust resistant.

2. Stepwell: It's origin is  found in Indus Valley Civilization.
3. Stupa: Buddhist monument
4. Flush Toilet: Evidences was found in the cities of Mohenjodaro and Harappa in 3rd century B.C.

Metrology:

1.Ruler:
2. Weighing Scale:
3.Crescograph: This device is used to measure growth of plant and invented by Indian scientist Sir Jagadish Chandra Bose.

Science and technology:
1.Plough:
2.Shampoo:
3.Microwave Communication: Before Marconi J.C Bose demonstrated MW communication in 1895.
Games:
1. Chess: Originally it was called Chaturanga and originated during Gupta dynasty.

2. Kabaddi:
3.Ludo:
4.Snake and Ladders
5.Playing Card:
Clothing:
1. Button:
2. Charkha:

Yoga ,a physical mental and spiritual practice was originated in ancient India.
Agriculture:
Cashmere wool or Pashmina,Cotton cultivation,Indigo dye,Jute cultivation,Sugar refinement are some of the discoveries done in India.
Mathematics:
1.Zero: Aryabhatta,Indian mathematician and astronomer gave the symbol zero.
2.Decimal System
3.Fibonacci numbers
4. Ramanujan theta functions,Ramanujan prime : Discovered by Indian mathematician Srinivasa Ramanujan in the early 20th century.
5.Approximation of Pi
Medicine:
1.Ayurveda
2.Cataract Surgery: It was first performed by the Indian Physician Sushruta .

3.Leprosy:It's cure was mentioned in the book Sushruta Samhita.

Diamond mining : India remained the world's only source of diamonds until the discovery of diamonds in brazil in 18th century.