Its easy man get a recharge coupon from the nearby shop and you wil get recharged or if you want to get recharged goto electric plug and just put your hands in you will get shocked
How To Call Without Recharge Of My Idea Prepaid Sim Card?
If you have no balance on your prepaid card there is no way you can make a call. Some mobile phones have such a provision in case of an emergency but I don't think it works in India.