Dear Sir,
Please note following :
Case - 1 :- In this case you will only provide a platform and not buy the product from vendor.
- Income Tax on commission income earned
- Service tax on commission income earned if the amount crosses Rs. 9,00,000/-
Case - 2 :- In this case you will do purchase and sell of product
- Income Tax on net profit earned (Sales Value - Purchase Value - Expenses )
- VAT on Sales Value charged
- Entry Tax as applicable on certain states in case of online sell