wanna crack upsc whats the amount of hours i daily need to put .And suggest me an institute which can provide me quality materials

Well the number of hours to put in for pre[paration depends on ones own grasping power and other factors. But still try maintaining a minimum of 9 hours study daily which will inlcude the newspaper reading excercise too. Coming to the quality materials, I think you should join RAIs or NIRVANA IAS ac