National Symbols of India

1. National Flag: The National Flag is a horizontal tricolour of deep saffron (kesaria) at the top, white in the middle and dark green at the bottom in equal proportion. The ratio is 2:3. In the centre of the white band is a navy-blue wheel which represents the chakra. Its design is that of the wheel which appears on the abacus of the Sarnath Lion Capital of Ashoka. Its diameter approximates to the width of the white band and it has 24 spokes. The design of the National Flag was adopted by the Constituent Assembly of India on 22 July 1947.
The Flag Code of India, 2002, took effect from 26 January 2002 and superseded the 'Flag Code-Indias' as it existed. As per the provisions of the Flag Code of India, 2002, there are no restriction on the display of the National Flag by members of general public, private organisations, educational institutions, etc.
2. National Emblem: The state emblem is an adaptation from the Sarnath Lion Capital of Ashoka. In the original, there are four lions, standing back to back, mounted on an abacus with a frieze carrying sculptures in high relief of an elephant, a galloping horse, a bull and a lion separated by intervening wheels over a bell-shaped lotus.
3. National Bird: The Indian peacock, Pavo cristatus
4. National Flower: Lotus (Nelumbo Nucipera Gaertn) is the National Flower of India. 
5. National River: The Ganga or Ganges is the longest river of India flowing over 2,510 kms of mountains, valleys and plains. It originates in the snowfields of the Gangotri Glacier in the Himalayas as the Bhagirathi River. 
6. National Animal: The Tiger is National animal of India. It has a thick yellow coat of fur with dark stripes. The combination of grace, strength, agility and enormous power has earned the tiger its pride of place as the national animal of India. Out of eight races of the species known, the Indian race, the Royal Bengal Tiger.
7. National Aquatic Animal: River Dolphin is the National Aquatic Animal of India. This mammal is also said to represent the purity of the holy Ganga as it can only survive in pure and fresh water. River dolphin is a critically endangered species in India and therefore, has been included in the Schedule I for the Wildlife (Protection) Act, 1972.
8. Currency Symbol: The symbol of Indian Rupee typifies India's international identity for money transactions and economic strength. The Indian Rupee sign is an allegory of Indian ethos. The symbol is an amalgam of Devanagari "Ra" and the Roman Capital "R" with two parallel horizontal stripes running at the top representing the national flag and also the "equal to" sign. The Indian Rupee sign was adopted by the Government of India on 15th July, 2010. The symbol, conceptualised and designed by Udaya Kumar, a post graduate in Design from Indian Institute of Technology Bombay.