The hospital, then, submits all necessary documents to TPA. TPA processes the bill on the basis of eligibility and actual cost. TPA makes the claim payment to the hospital and / or patient (as per the policy terms and actual cost). You shall, then, be refunded the deposit amount of Rs 10,000 with deduction if any.
Generally the TPA only approves a part of the expenses of the treatment and only after the hospital sends the final bill along with the discharge summary and other reports does it approve the entire amount.
Sometimes the hospitals will request the TPA to increase the amount approved if needed during the treatment.