Dont bother of unprofessional answers. Pl follow below procedure. However I am not a CA but have interest in doing Business thats why I have gatherd knowledge of it.
Your require below things :-
LLP Business registartion / Sole Proprietor
Sales Tax registration (DVAT) - Only if your anual turnover is more than 10 Lac
CST registration :- It is compulsary if you want to sell your products in whole India (mens other than your base state)
After this you have to apply for Current Account with any Bank, ICICI bank is very helpful and fast processing in operning current Account for new Business man.
After this you have to get a Website Cretaed.,
After that you have to take a payment gateway from LIke :- CC Avenues, EBS, Pay U etc and get it integrated with your website.
Thats It.. Enjoy.