Saikripa and Mala Smriti Home in Noida
Nirmal Hriday at Majnu ka Tilla is a good one . Also you can go to Sparsh.
Udaan, Teach India and Sankalp
Psycho-educational society aims to uplift the less privileged children in rural areas by providing basic education and creating awareness among the illiterate women on family welfare, health education and personal hygiene.
You can check out Auxilium Snehalaya. My school was associated with this orphanage and every year we would send TONS of gifts for the children living here. And yes they're all absolutely amazing!
You can visit Save the Children in East of Kailash. I am sure you along with the kids will have a great time.
That’s a beautiful thought. Visit Goonj.