Can we disconnect the power supply to the flat from the electric room? This seems to be the only option to put pressure on such defaulters coz we don't want to take a legal route.
This is illegal. You cannot deprive the inhabitants the basic amenities.
These are essential for residents. The act of disconnecting would attract criminal offence on your part.
You may issue legal notice to them demanding the arrears and regular monthly maintenance, in case they do not respond then you may initiate legal procedures as per the provisions in the bye laws on this.
But you have to initiate any process by due process of law only.
Sale deed signed by the builder, for each flat has such provision. It says "Should any party default in payment of common expense for the benefits or amenities, the Association shall have the right to remove such common benefits or amenities including electricity and water connection from the defaulting party's enjoyment which shall be reconnected to the party after such arrears are cleared"
The sale deed conditions are not the governing law in this regard.
It is arbitrary and unlawful.
You may pass a resolution in the general meeting in this regard and let the general body meeting decide further legal action on the subject by passing a resolution in this regard.
The decision taken in the general body meeting shall be binding on all members, which would protect you from the wrath of law.