Nifty supports @ 5375-5355. Shorts created at higher levels can be booked before any further weakness emerges in for positional shorts. Till then Nifty can stay range bound on expiry day.
Resistances @ 5420-5445. Above that it can target 5465-80. Better to book quick points in intra longs as long it closes above 5465 or crosses 5480 for further target of 5525/35.