If you have access to your television, you can easily get to know your subscription ID by pressing the 'Yellow' button on the Tata Sky remote. As soon as you press this button a 10-digit number will appear on the right-hand side corner of the TV screen, this is your subscription ID. Or If you do not have access to your TV screen then simply give a missed call to '8880488804' from your registered number and the details will be sent to your number through SMS.