Postal Life Insurance — non credit of pli maturity amount

My self 782439-g sgt sunil kumar singh my policy no is aps-629549-a already matured on 12 oct 17. But not received any amount in my account till date on 29 nov 17. I have already send all original documents such as bond paper with cancle check, claim application from and all required document. The payment has not been credit in my account. Please do needfulhelp. My address is 782439-g sgt s k singh 42wing air force station mohanbari dibrugarh assam. Mob no [protected] date of proposal -28sep 2005, date of declaration 28sep 2005, date of acceptance 13oct 2005, sum assured-100000, date of maturity 12oct2017, monthly emi -695, last emi is sep17.