Disconnection of common electricity meter in a building.

Hello. I live in a building which has 4 flats, a flat on each floor. Ever since we purchased the flat there was no housing society creates as we were told the minimum number of members are 7 to create a housing society. We have a common meter in our building which accounts for water pump, lift facility, and lights in the parking, staircases and terrace of the building. The bill of the common meter has always been divided among 4 flat owners equally. In the year 2021 a flat was sold to a new owner. Since then she has been causing problems. She would always threaten to not pay her share of bill in case her unreasonable demands are not fulfilled. Eventually she stopped paying her share of bill resulting into disconnectionn of common supply of electricity. The building is left with no tap water in houses, no lift facility and no lights in the parking and staircases. I hav tried to inform local police station about this lady's mischievous attitude but they said they can't meddle in this matter. Can you please guide me in this matter as this has caused great distress to me and my family.