Pratham Foundation — Asking donation every month

I started receiving calls from Pratham Care Foundation since last few months. They used to share some case history and ask for monetary contribution. This became a casual thing and they started reaching out to me on monthly basis on every month end or last week of month. Yesterday, they reached out to me with the case of Mehak Gautam (12 years suffering from blood cancer) and as usual asked to contribute some donation. I asked to share their website name. When I opened up the link from mobile phone the case of Mehak was there. But when I opened up the website by searching it on Google the case of Mehak was not there. This made me realise that I was contributing my money to some wrong organisation who are cheating people in name of NGO's . I get call from volunteers Kuldeep & Aashi. Please beware of such calls.