Partnership registration

As i am planning to startup a e-comm business with my Friend tat is online store similar to Flipkart & Jabong...

i need the details wt all Registering we have to make & any special registration & taxes for E-comm business.

how to Register a Partnership Firm??? forms required

Registrations Required for Firm like tan vat etc ???

& even for company LOGO should v need to register any copy right if so plzz mention???

thank you

Varun