What happens if share price falls after pledging?

If i pledge 100 shares worth rs 100 and i get 8000 after haircut. What will happen I i don’t do any trading with that margin and share price falls to 10rs? Or what happens if the share rises to 150rs. How much money do I need to give to unpledge those stocks?

The collateral margin you receive will be adjusted according to haircut value and price of the security.

You don’t have to pay any amount while unpledging your shares.