Question

How long have ignp river

Answer 1

I presume you want me to write about the Indira Gandhi Nahar Project (IGNP).

IGNP was built in order to usher in the Green Revolution by the de-desertification of the Thar Desert in Rajasthan. Besides agricultural development, IGNP was also intended for providing drinking water, improvement of the environment and for the better upkeep of animals.
Stage I consists of the feeder canal, which is 204 Kms long; there is also the 189 Km long main canal and the 3,454 Km long distribution system. Stage II comprises of a 256 Km long main canal and 5,606 Km of a lined distribution system.
The project, which was started in 1958, is yet to be completed. The source of water are the Ravi and Beas rivers. The beneficiaries of the canal are the districts of Barmer, Bikaner, Churu, Hanumangarh, Jaisalmer, Jodhpur and Sriganganagar.