Does Zerodha share our phone numbers

Recently I have been receiving call from brokers and research firms for free demo call and services. I have not shared my numbers anywhere but still I am getting these kind of call frequently and it has become a nuisance. Zerodha should examine if there have been any data leaks or intentionally been shared by its employees or associate sites.

A post was merged into an existing topic: I am getting a lot of unsolicited stocks tips SMS messages ever since I opened a trading account, how do I stop these?