Head to Select Citywalk in Saket. Can shop, eat, watch a movie, explore the kiddie area (Hang Out) etc.
Lohagarh Farms is a must visit in Sohna Road
Eos adventure Park
It is nice and cheap
For family activities you should visit Pratapgarh Farms and Lohagarh farms. Both places like Village ambience and village activities. Food is unlimited.
Ski india at Dlf mall of India