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Dear Customer,

We look forward to serving you the way brand MTS serves nearly a hundred million people across the world. Our dream is to help you achieve yours. A step ahead.

For any assistance or clarifications please find contact details as below:

Address: Sistema Shyam TeleServices Limited
PS Srijan Tech Park, 
9th Floor, DN-52, Sector V, 
Salt Lake City, Kolkata, 
West Bengal – 700091
Voice Care No. 199 (Toll free from MTS) or 9143155155
Data Care No. 199 (Toll free from MTS) or 9143955955
Toll free - 1800 2081 955
E-Mail :
Fax No. 9143166166

If you are calling us for a new service request or a complaint, please note the Service Request Number as given by our representative. This is your unique reference number for registering your enquiry with MTS Customer Care. You will need this number for all other future communication.

The MTS Team will address your concerns as soon as possible, however we require at least 3 days for disruption/disconnection of service complaints and 7 days for any other complaint, since they might be of different nature and level of complexity. But rest assured, your concern will be addressed up to your satisfaction.

In case you are not satisfied with our response within these timelines, we encourage you to contact our Appellate Authority with your Service Request / Complaint Number (the unique number you get when you register with MTS Customer Care) anytime from Monday to Friday, between 9:30 am and 6:30 pm.*

Appellate (Kolkata)

Name: Mr. Sandip Patnaik
Address: Sistema Shyam TeleServices Limited
PS Srijan Tech Park, 
9th Floor, DN-52, Sector V, 
Salt Lake City, Kolkata, 
West Bengal – 700091
Voice Appellate No. 198 (Toll free from MTS)
Data Appellate No. 9143955955
E-Mail :
Fax No. 9143366366

While appealing to the Appellate Authority, please remember: 

  1. In case you are not satisfied with the resolution provided to your complaint at the customer care, please share your complaint number along with the resolution provided in the appellate appeal for registering appellate complaint.
  2. You need to provide your Complaint Service Request Number while contacting the Appellate Authority. This will help the Appellate Authority access your entire case history.
  3. The appeal will be decided within 39 days from the date of filing your complaint.
  4. To download the Appeal Form, click here.

Notification Click to open the notification.

Each and every message is being personally tracked for resolution and used as a reason to tune MTS service practice for better. We expect you would provide us with details of your preceding communications and the resolution offered. Special appreciation would be paid to the most constructive and helpful recommendations. Thank you for your understanding and cooperation.

Click here to download the Telecom Consumer Charter.

Click here to download the Contact information in Bengali.

Rounding rules

Consumer Grievance Redressal Report

Consumer Workshop Schedule 2017-18

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