1. The area of Ganga Brahmaputra basin is situated in 10°N to 30°N latitude.

2. The Ganga Brahmaputra Basin is located in the subtropical regions of the Indian subcontinent.

3. Ganga Brahmaputra Basin is a basin formed by the Ganges and Brahmaputra rivers and their tributaries.

4. Following are the characteristics of Ganga-Brahmaputra basin.

- This basin has rich plains, Himalayas and Sundarban delta.

- Area: 1,999,000 square kilometers

- Population: over 1.5 billion

- Main rivers: Ganga, Brahmaputra, Yamuna, Godavari, Mahanadi, and tributaries of Brahmaputra.

- Main crops: Paddy, wheat, maize, and pulses

1. Ghaghra River is the largest tributary of the River Ganga.

2. It flows through Uttar Pradesh and Bihar. The origin area of the Ghaghra River is in the Himalayan Mountains of the Pithoragarh district of Uttarakhand.

3. Ghaghra River joins Ganga River in Gorakhpur district of Uttar Pradesh.

4. Sabarmati river flows in Gujarat.

5. Mahi river flows in Rajasthan and Gujarat.

6. The Bhima River flows in Maharashtra.

36 Islands form Lakshadweep. It is the smallest union territory. Its capital is Kavaratti.

Lakshadweep is situated in south west part of Indian Ocean located in Arabian Sea. Its capital is Kavaratti. It is the smallest of all union territories of India.

India’s coast line is 7516km.

Gujarat has the longest coast line in India followed by Andhra Pradesh.

In terms of area Rajasthan is the largest state of India followed by Madhya Pradesh, Maharashtra, Andhra Pradesh and Uttar Pradesh

Puducherry is situated on eastern and western coasts of India. It has four districts.

1. Puducherry and Karaikal-on the coast of Tamil Nadu (eastern coast)

2. Yanam-on the coast of Andhra Pradesh (eastern coast)

3. Mahe-Kerala (western coast)