SEBI cautions investors against fraudulent stock-tip WhatsApp groups
“To make these calls look credible, certain members, acting in concert with the operators, post false claims of profit and praise the 'expert'. This practice, known as astroturfing, creates a false impression of genuine support and induces unsuspecting investors to act on the call,” says SEBI
We haven't written up this one. The Hindu has the full story — the link below goes straight to it.