Just for your info most traders who made it really big shorted nifty at 12k bank around 31 k and most of them exited trades at 8.5 k and bnf at 17 k expect market to go sideways and not down. I am not saying it can't go down, but the trend is down with sideways bias, some of them who have made it really big might take high risk shorts again, as they can afford the odd spikes, if you are planning to short now (fresh shorts) consider your trades to be high risk, markets may have discounted corona already. Now fear and panic could lead to new bottoms. It does not mean I am suggesting a buy, but what I mean is the level of risk associated with short, considering your time frame, I think you have suggested swing short!
PS: Considering your target, your short makes sense to me! Expect Spikes.
I agree with your crude entry, longs can be attempted at these levels.