LLP for trading

I am thinking to register a LLP for trading.

will create a Dmat account on name of LLP and out my own corpus. Will not ask others to fund.

By doing so, what advantage I can have?

show my rented flat as office?

show a room in my house as office?

how much tax I can save on sort term and long term capital gain from equity?

Can I buy laptops, car on same LLP and save tax?

Thanks for sharing your views.