Municipal Corporation Of Chennai — applied for death certificate for my father in zone 5 still not yet received

Address:

plot 11, indira orchard town, sengundram village, singaperumal koil, 603204

I have submitted the death application form with supporting document in zone-5 (Mint corporation) on 30th december 2019, where my father g. Gopal expired on 24th november 2019, still not yet received the online death certificate.

I went on 18th february 2020, directly to corporation office, they said it will be updated next day evening, still it is updated and not yet generated, please find the attached document for your reference.

Please help to rectify the issue as soon as possible.

Every time i call to the corporation office, they are not responding properly through call or directly