How can i apply for visa and what is the expense?

Hi Santhosh, before the visit, you should get an M type entry permit. To apply for it, you should first contact a supplier based in China, and ask for an invitation letter. Then go to the respective CVASC center and submit the following documents: valid passport, a copy of the passport’s information page, a filled-out application form glued with your recently-taken color bare-headed photo, the invitation letter, and a brief introduction to yourself or your working unit. The cost for a single-entry type is Rs4961.