Which is license required to do trade business

Mainly 1. Shop & Establishment act...

2. Profession Tax...

3. GST...

4. NOC from Food & drugs Department, Fire authority, & Pollution control board, whichever applicable as per the chemicals traded.

Almost....

First two mandatory...

Third as soon as your turnover likely to cross 40/20 lakhs in any FY...

Forth list is for some specific requirements when you deal with any specific hazardous chemicals and restricted pharma/drugs. depending upon case to case..

Some more requirements if you import or export any goods...