PARTIAL EXECUTION AT Pre-Market Session?

In case we put large quantity of Buy/Sell order in pre market session, is it possible for
PARTIAL execution? If yes,what will happen to the untraded EQ shares??

If your order is partially executed in the pre-market session, the order for remaining quantity will be carry forwarded to the normal market session. If you had placed a limit order, it will be carried forward with limit price, if it was market order, it’ll be carried forward at the opening price. You can learn more here: What are pre-market and post-market sessions and orders in NSE and BSE?