Father died in Delhi but cremated in Bihar, death certificate location

My father passed away in government hospital in Delhi. Then we brought back his body to my native village in Bihar for Antima Sanskar. Now I having problems getting Death certificates as cremation ghat says they'll write place of death "as local town not Delhi " and Gram Sewak/Mukhiya also saying same or else asking me to go Delhi and contact the authorities there for death certificate. I have a Death Receipt stating admission date and date of death from hospital but not the death certificate from the hospital of Delhi. Do I have to go Delhi again? Or may get the certificate here in my town in Bihar?