@PeterEngland ji
Please don't be offended with my line of argument.
You sold 50% meaning let's say 55 shares at UC today, and you plan to sell balance 50 at Monday's UC (at 178.75 if today's circuit sustains).
So, you are basically taking a risk that today's circuit sustains and getting Rs 425 more than what you would get by selling today at 170.25.
If you this risk is worth it then hold, otherwise sell today.