Coaching/commercial class of karate, basketball and skating in common areas of residential apartment

Since apartments are managed by Residents Welfare Association, which is governed by provisions of Societies Registration Act, 1860, it is better to show Memorendum of Association and Articles of Association of the RWA to a local prudent lawyer for analayse and form proper opinion qua availability of area in the premises for usage as common areas.

"Other residents also do not speak for their own children."

You will be left out as minority.

You can gather like minded people and storm into the office of the secretary of RWA with a written complaint to address your grievances in this regard and to take proper action as per bylaws of the society to provide relief and remedy.

If the society still maintains silence or indifferent attitude then you all may approach the local civic body against them for illegally occupying the common areas and causing disturbance and obstruction then yo all other residents.

You can alternately approach consumer distress redressal commission or registrar of cooperative society for relief and remedy against society.

It is appropriate to contact, consult and engage a local prudent lawyer for proper analysing facts, professional advise and necessary proceeding