Licenses or registration needed for sole proprietor export

Hello All,

I am a sole proprietor from Bangalore.

I source apparel ( mostly Trousers ) from Jaipur and sell them to international markets through online platforms and accept payments through paypal.

I started this business 2 months back. Currently , My montly turnover is 40,000 - 45,000 and I expect it to go around 90,000-1 Lakh from december onwards.

Till now, I have not registered anywhere.

Please suggest me what all registrations I need, if any. Also do I need to register for Sales / Service tax or any other tax registration.

Thanks & Regards,

Mohnish