1) in the vent you are doing business with another partner you can form a partnership firm and it has to be registered with regsitrar of firms
2) if you want to do business as company you can form private limited company for said purposes .
3)for formation of pvt ltd company you have to follow the detailed procedure
4) you would need minimum 2 directors, minimum paid up capital of Rs 1 lakh
5) apply for allotment of director identification number , digital; signature certificate
6) search for company name availability , draft memorandum and articles of association of the company
7) payment of ROC fees and stamp duty would depend upon authorised capital of the company
8) you should contact local CA in this regard