Explanation:

 The state of Rajasthan is endowed with large lignite deposits in the country after Tamilnadu & Gujarat. In the three districts of the state viz. Bikaner, Nagaur and Barmer, geological reserves of more than one billion tonnes have been confirmed so far by exploratory drilling. Beside, deep seated reserves of lignite suitable for underground lignite gasification also exists in the state. The state is also having lignite blocks suitable for development of Coal Bed Methane projects.