The Tropic of Cancer divided India into almost 2 equal parts. It passes through 8 Indian States of India – Gujarat, Rajasthan, MP, Chattisgarh, Jharkhand, West Bengal, Tripura and Mizoram.

The neighbouring countries of India in decreasing order of border length are : Bangladesh-China-Pakistan-Nepal-Myanmar-Bhutan-Afghanistan.

In January 2011,India’s biggest energy explorer Oil & Natural Gas Corporation ONGC has discovered the country’s first shale gas reserve at Durgapur in Burdwan district of West Bengal. The gas reserve spread over 12,000 square km in the Durgapur-Ranigunj area – is the world’s third shale gas find

Vidnyhan System stretches from sasaram and rohtas in western Bihar to chittaurgarh in Rajasthan. These rocks came into existence after cuddapah rocks. These are sedimentary rocks which are built from sandstone, shale, and limestones.

Arunachal Pradesh, Assam, West Bengal & Sikkim

The Kandeleru Dam is an irrigation project built on the Kandaleru River in Rapur Mandal, Nellore district, Andhra Pradesh. The project is part of the Telugu Ganga project which supplies drinking water to Chennai city from the Srisailam reservoir on Krishna River.

Project Varsamana’ was launched in 2008 under the umbrella of the strategic partnership signed in July 2006 between Ministry of Earth Science and Meteo France International (MFI) France. Varsamana project is the cornerstone of the IMD Modernization Program, since it will help demonstrating the ultimate outcome in the form of improved services to the user community. It contributes to integration of all its individual components, hence it guarantees cost effectiveness of overall investment. It is delivering a modern, integrated Meteorological Information System, in order to guarantee improved warning and services at district level. It also brings the integration with existing systems and mainly new observation and computing systems coming to IMD in the context of the modernization program

In early summer brief squalls and thunderstorms known as Kalbaisakhi, or Nor`westers, often occur in West Bengal.

The Gandhi Sagar Dam is built on Chambal river and is located in the Mandsaur & Neemuch district of Madhya Pradesh. It is a masonry gravity dam, standing 62.17 metres (204.0 ft) high, with a gross storage capacity of 7.322 billion cubic metres from a catchment area of 22,584 km2. The dam sports a 115-MW hydroelectric power station at its toe, with five 23-MW generating units each providing a total energy generation of about 564 GWh. The dam’s reservoir area is the second-largest in India (after the Hirakud Reservoir), and attracts a large number of migratory and non-migratory birds throughout the year.

The number of mines which reported mineral production {excluding minor minerals, petroleum (crude), natural gas and atomic minerals} in India was 3108 in 2012-13. Out of 3108 reporting mines, maximum number of mines were located in Andhra Pradesh (583) followed by Rajasthan (374), Gujarat (350).