Hey Manish, I have no idea what agenda you have.
Nithin has given a detailed explanation as to why this happens here. I suggest you make yourself aware of how the Exchange trading/order matching systems work before deciding to blame/accuse someone of any wrongdoing.
Do you know how many entities your information has to be shared with as part of regulations? When you choose to open an account with any broker, the broker is required to share details of your mobile & email to the Exchange, Depositories, KYC agencies. The Exchange uses this information to send you SMS on days you have traded and alerts when brokers upload your fund balances. The Depositories use this to send SMS whenever there’s a debit transaction on your demat account. The KYC agencies use this to send you updates whenever an entity fetches your PAN and does your KYC. All these are points from where your data can leak. We’ve even started a campaign to curb this menace and you can partake by reporting the numbers from where you are getting these unsolicited calls/messages. All our clients are aware that we attach the highest degree of concern to their personal information and under no circumstances would compromise on our integrity.
Closing this topic since this is just sensationalism created with some ulterior motive.