Individual — Non-availability of online birth record prior to 2016

I m a resident of Sarojini Nagar Lucknow. On 09th August 2010 my daughter gave birth to twins at Ajanta hospital Alambagh Lucknow. At that time registration of birth could not be done at Municipal corporation Lucknow however It was done in 2015.
For getting Birth Certificate online, a link was provided by Nagar Nigam Ward-5. I downloaded the Birth Certificate but unfortunately now I m unable to locate it.
I tried to re-download it online but birth record prior to 2016 are shown as "No record found".
As I am away at Bangalore for the present, I sincerely request you to kindly use your good office in getting it re-downloaded or arrange a hardcopy from Nagar Nigam Lko.
Name of babies:-
1 Shivika D/o Rajneesh sharma
2. Siddharth S/o Rajneesh sharma

Thanks and regards
KN Sharma