Law on destruction of records

I am a regular property-tax payee every year to Greater Hyderabad Municipal Corporation (GHMC) from the past 20 years assessment years (1991-2011).

Recently due to electricity short-circuit , most of property-tax paid receipts burned away at our home .

Now I want  to apply for  land regularization scheme( LRS) as announced by state government. To apply  LRS it is mandatory to file the 20 years property-tax receipts as enclosures.

Recently, I applied  for  copies  of 20 years property-tax receipts under section 6(i) of the Right to information act, 2005 to the Public Information Officer of GHMC.

PIO  replied me  in a letter that, GHMC cannot provide  copies of property-tax receipts  for the past 20 years (1991-2011) as the same were destroyed  as per the department policy.

For the above reasons, I cannot be denied the right to apply for land regularization scheme( LRS) scheme.

What inference/ presumption can be drawn for  current issue as per the law ?

Is there any provision of law to overcome want of  the lack/ destroyed documents ?