Beware of Scam happening near Sec 18 and nearby

I live in Sec 20. Today morning, group of Sardars came to my door asking for donations for a Langer they will put up next week in the Gurdwara next to Wave Mall, next week. These are lies. 1. No gurdwara does door to door chanda collections like a Navratri Pandal Chanda collection. 2. IMPORTANT: They are using Hypnosis. I'm not kidding. My flatmate is a psychologist and a certified hypnotherapist. They tried using it against him. They make you look at specific thing for long, will talk in a rhythmic way. These induce trance. Thankfully he didn't give more than 100rs. He had his guard, but these people were pretty good apparently. He claims, its a technique of hypnosis. They also showed his magic, by finding his birthday and name of mother, like Suhani Shah does. Be very very careful, if you have mother's and sisters living in this area. They may ask for Gold jewelry and all. My flatmate told me, when you're in the trance, it's very difficult to resist. He said he does it with his patients with their consents. But when done without it, you'll realise it after a while. That's exactly how hypnosis works. These were group of 3 sardars. I don't wanna get involved in legal issues so won't be filling any complaints. Plus being a Punjabi myself, I had not entertained them. He's from Bombay, so he didn't know about this scam.