In that case you dont need to be worry about anything as HR has a rule that after a certain time they have to relive a candidate who is not working so long with the organization. This is normally will take 2-3 months and after that they will clear your all dues but if you cant wait then go to your AVP once again and request him to ask your HR deptt to relieve you or need to go to the HR directly and ask them to speak with your AVP and clear your dues and for your clearance. Except this i dont think you need to go further as there are some other legal options you have in your hand but this wud not be good.
So dont lose hope and please try once again and make a humble request to them...Best of Luck
So dont lose hope and please try once again and make a humble request to them...Best of Luck