Implementation of 1600 Series Number for Outbound Investor Calls
NSE circular NSE/ISC/ 75749 · 14 Aug 2026
Official title
Implementation of 1600 series number by Investor Services Center for outbound calls to Investors
Official record
Open source pageSummary
Check the official recordWhat changed
The National Stock Exchange of India Limited implements a dedicated 1600 series number for outbound calls. The Investor Service Centres and the Defaulter department use the number 1600322410 for these calls. This number only supports outbound communication. Participants cannot call or send messages to this number. Participants continue to use the toll-free number 1800 266 0050 to contact the Exchange. The Exchange advises participants not to disclose personal information such as PAN, Aadhaar, bank details, or passwords during calls. This measure helps investors identify official calls and prevents fraud.
What you must do
- Do not disclose personal information such as PAN, Aadhaar, bank account details, card details, login ID, login passwords, or one-time passwords over calls.
- Use the toll-free number 1800 266 0050 to contact Exchange departments.
Key dates
Document text
[Image omitted. See the official document.]
National Stock Exchange of India Limited
Circular
| Department: INVESTOR SERVICES CELL | |
|---|---|
| Download Ref No: NSE/ISC/ 75749 | Date: August 14, 2026 |
| Circular Ref. No: 38/2026 |
To All Market Participants,
Sub: Implementation of 1600 series number by Investor Services Centre for outbound calls to Investors.
All market participants are requested to note that w.e.f August 15, 2026, the Investor Service Centres of the Exchange and the Defaulter department, shall henceforth be calling from a dedicated number i.e. 1600322410. This number is intended only for initiating outbound calls; and participants will not be able to call or send messages to us using this number.
Participants should continue using Exchange Toll free number 1800 266 0050 for contacting the Exchange departments.
Market participants are advised NOT to disclose any Personal Information such as PAN, Aadhaar, Bank account details, Card details, Login ID, Login Passwords or One-Time Passwords over the calls.
This initiative aims to help investors easily identify official calls from the NSE Investor Services Centre and differentiate them from potentially fraudulent or impersonation calls. Through this initiative, we seek to promote safer investor communication, build trust and awareness, and empower investors to stay alert and protect themselves from fraud.
In case of any clarifications, investors may write to ignse@nse.co.in
For and on behalf of National Stock Exchange of India Limited
Dinaz Shroff Associate Vice President
| Toll Free No | Email id |
|---|---|
| 1800-266-0050 (select option 5) | ignse@nse.co.in |
Regd. Office : National Stock Exchange of India Limited | Exchange Plaza, C-1, Block G, Bandra Kurla Complex, Bandra (E), Mumbai - 400 051, India +91 22 26598100 | www.nseindia.com | CIN U67120MH1992PLC069769
Source details
- Source
- National Stock Exchange of India
- Type
- circular
- Published by source
- 14 Aug 2026
- Document number
- NSE/ISC/ 75749
- Issuing division
- INVESTOR SERVICES CELL
- Effective date
- 15 Aug 2026
- Coverage area
- securities