<Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2011) (Learn how and when to remove this template message) </Td> </Tr> <P> Desert safaris on camels have become increasingly popular around Jaisalmer . Domestic and international tourists frequent the desert seeking adventure on camels for anything from a day to several days . This ecotourism industry ranges from cheaper backpacker treks to plush Arabian night style campsites replete with banquets and cultural performances . During the treks tourists are able to view the fragile and beautiful ecosystem of the Thar desert . This form of tourism provides income to many operators and camel owners in Jaisalmer as well as employment for many camel trekkers in the desert villages nearby . People from various parts of the world come to see the Pushkar ka Mela (Pushkar Fair) and oases . </P> <P> Rajasthan is pre-eminent in quarrying and mining in India . The Taj Mahal was built with white marble mined from Makrana in Nagaur district . The state is the second largest source of cement in India . It has rich salt deposits at Sambhar . Jodhpur sandstone is mostly used in monuments, important buildings, residential buildings, and such . This stone is termed "chittar patthar". Jodhpur has also got mines of red stone locally known as ghatu patthar used in construction . Sandstone is found in Jodhpur and Naguar districts . Jalore is biggest centre of granite processing units . </P> <P> Lignite coal deposits are there at places Giral, Kapuradi, Jalipa, Bhadka in Barmer district; Plana, Gudha, Bithnok, Barsinghpur, Mandla Charan, Raneri Hadla in Bikaner district and Kasnau, Merta, Lunsar etc., in Nagaur district . Lignite based Thermal power plant has been established at Giral in Barmer district . Jindal group is working on 1080 Megawatt power project in private sector at village Bhadaresh in Barmer district . "Neyeli Lignite Barsinghpur Project" is in progress to establish two thermal power units of capacity 125 megawatts each at Barsinghpur in Bikaner district . Reliance Energy is working on establishing power generation through underground gasification technique in Barmer district with an outlay of about 30 billion rupees . </P>

Describe the climate of the great indian desert in three points