18 January 2018
business address proof... like electricity bill... rent agreement... registration papers etc.... Aadhar .... passport size photo....pan no
19 January 2018
For expert knowledge, refer following links https://www.amazon.in/dp/194832105X https://www.infibeam.com/Books/indirect-tax-laws-part-i-goods-services-tax-s-k-mishra/9781642490305.html