Enter BLR airport at 12am for a 6am flight

I have a 6am flight, dont want the hassle of a 3am commute. Want to just enter the airport early, at around 12. It is ok if the check-in counters dont open, planning to wait near the check-jn counters. Any idea if entry will be allowed 6 hours early? Has anyone tried that recently? T1 terminal (domestic flight) Update: Thank you all for the replies. I was allowed to enter without any issues.