1) if you are staying in rented premises your landlord NOC would be necessary
2) you would need to select name of your proprietary concern and fulfill formalities for opening bank account in name of the concern
3) you would need licence under shops and establishment act . for such purposes inspection of your premises would be necessary before issue of licence
4)you would need VAT registration if your turnover is more than Rs 10 lakhs and you are selling goods or products