New business startup

i wanted to know that will it require any extra efforts if i apply for gst before the closing?

what in case if my gst gets approved before 31 march. What i would be required to do?

and if i do not carry out any work within this period till the closing time what will be the necessities i would have to follow in the closing?

also please let me know what is the best time (month) to startup a new business!


business type- online retailing on ecommerce platforms.