A society refers to an association where more than two people come together to do partake in charitable activities for the people. To that end, you can refer to a society as a Non Profit Association. However, to get the full benefit of such an association, you need to get Society registration in Delhi.
In a co-operative manner for non profit purposes to do something for the society
These societies are registered or the purpose of advancing certain charitable activities like: sports, art, culture, music, religion, education etc.
Governed under the Society Registration Act, India, this is one form of registration that you are looking for if you endeavour to start something with altruistic purposes.