Lucknow Nagar Nigam — Regarding transfer of ownership

My name is Kalpana Chaturvedi and my mother owned a house C 1051/52 Sector B Mahanager Lucknow. It was bought on her name from Mr. WB Sikka and she was the owner of that house. I am the only child of my mother. She died in 2009 and in 2012 my father managed to get it mutated on his name for tax purpose without any NOC from me. Recently my father died in February 2020 and on 1st July I got a notice from nagar nigam asking for NOC from me as my father had willed the entire property to Mr Navneet Shukla (my step nephew)who was staying with my father since last few years. On receiving the notice I got submitted my objections with the help of my lawyer and filed a case against him. The case is still undergoing and no judgement has not been given. I came to know that municipal corporation is going ahead transferring the ownership on the name of Mr. Navneet Shukla. My objection is that how come Municipal corporation transferred the property on my fathers name without my NOC and how come it is again transferred on the basis of a will which in itself will not be valid as how come my father did not had any right to will as the house was owned by my mother.
I would request nagar nigam to stop the proceedings on immediate basis. I am attaching the notice for the reference.

Thanks and regards
Kalpana
[protected]
chaturvedi.[protected]@gmail.com