Alleged 'kingpin' of a 25M rupee Indian crypto scam arrested at Delhi airport

The man is said to have convinced people to invest in a 2017 scheme promising monthly returns of over 20%.
Source: Alleged 'kingpin' of a 25M rupee Indian crypto scam arrested at Delhi airport (https://cointelegraph.com/news/alleged-kingpin-of-a-25m-rupee-indian-crypto-scam-arrested-at-delhi-airport)
Would appreciate your opinion about this