Your message is heartfelt and effectively conveys the spirit of your NGO's initiative. Here's a polished version:
Our Child Vikas Foundation is honored to surprise street vendors with special gifts, acknowledging their tireless efforts and dedication.
Join us in wishing them a Happy Deepawali!
This initiative is part of our ongoing efforts to promote community development and social responsibility.
We hope the surprise gift brought a smile to your face and warmth to your heart this Deepawali.