Devprayag: is a city located in Tehri Garhwal district of Uttarakhand state of India. It is one of the Panch Prayag and here the Alaknanda River meets the Bhagirathi River.

1. The credit for initiating modern industrialization goes to coal energy resources.

2. Coal is a solid organic substance which is used as fuel. Coal is very important as a major source of energy. 35% to 40% of the total energy used comes from coal. Other combustible and useful substances are also obtained from coal.

1. The Sadiya-Dhubri stretch of the Brahmaputra River has been declared National Waterway 2 by the National Waterways Act 1988.

2. The waterway extends from Dhubri to Sadiya for a distance of 891 km.

1. The longest coastline in India is along the state of Gujarat. Its length is approximately 1,600 kilometres. This coastline borders the Arabian Sea and includes many beautiful beaches, islands and ports.

2. Gujarat's coastline is important for India's economy and culture. It is an important centre for tourism, fishing and trade. Several important ports are also located on the coastline, such as Mundra, Kandla and Porbandar.