motherandchildindia.org they need donations and more volunteers.
If you want to come and stay too you can sleep in the centre and help out with the kids teaching or just talking to them. They also need people who can sew clothes and make furniture in the workshop. They're trying to become self-sufficient.
If you can't come and still would like to help, send clothes, books, food or money. Or try fundraising. Or write to businesses asking to send donations, like mattresses, paint, chairs, etc.