Mgvcl — Fluctuation in electricity

In the early morning hours of 3.2.2023 there was electricity fluctuations and due to winters the fans were off. But in the morning when we woke up came to know that lift circuit had burnt off and house wifi system got damaged.
Similar complaint was reported on 9th December 2020 and damages occurred by us. During the last complaint the authorities have said that the fault was in transformer where the squirell were made their nest and such issues will not occur. But the same things has reoccured and we would like to recover the cost of the charges from MGCVL. Th