Okhla bird sanctuary
Visit GIP mall, there you can visit adventure park to have fun with kids, watch movies, go to shopping, can have delicious food.
You can also visit Waste of Wonders for Picnic with kids and family. It’s near Nizamuddin Railway Station.
You can travel Okhla Bird century. It is a park with a lake. Do take some eateries and water with you to enjoy picnic.
Go to some good picnic spots
Smash in Dlf mall of India