In my opinion, Looking at the price action of last 6 days, market is closing about 3900 and not making the low below 3850 (approx), it is more likely to go north from here.
I that situation, your PUT is going to loose go out of the money (hence loose its value) with every step of nifty in north direction. Moreover your PUT is also decaying in value day by day as it is getting closer to expiry.
So it is better to cut your loss and move the money to other better opportunity.