@Azhagu there are a few things we can do to resolve the issue and get the tablet to a working condition again, as I don't have the direct number to Trichy at the moment, maybe I could look into the details once you give us a chance to help fix it,
Perhaps, you could tell us exactly what happens and we can help you fix it?
Meanwhile, try the below steps to turn it on, if it isn't turning on anymore:
Step 1: Charge the HP tablet battery
Charge the battery using the AC adaptor and charging cable that came with your tablet. Allow the battery to charge for 30 minutes or more, and then attempt to turn on the tablet again.
Using an incorrect AC adaptor can cause damage to the battery and user, as well as other issues.