Apply for your company’s ISIN — fully online, fully compliant.
Regnum RTA files ISIN applications with NSDL and CDSL on behalf of listed and unlisted companies — for equity, preference shares, debentures, and NCDs. Submit your details online and we’ll take it from there.
A 12-character code that uniquely identifies your security.
An ISIN — International Securities Identification Number — is a 12-character alphanumeric code that uniquely identifies a security globally. In India, ISINs are issued by the two depositories: NSDL and CDSL.
Every security held in dematerialized form must have an ISIN. That makes it a prerequisite for listing on a stock exchange, demating physical shares, and (for many private companies under the Companies Act amendments) for any future transfer of securities.
Required for every demat security.
Listed companies
Equity, preference shares, debentures, and bonds issued by listed companies all need an ISIN.
Unlisted public companies
Required for dematerialization under the Companies (Prospectus and Allotment of Securities) Rules.
Private companies (above thresholds)
Private companies meeting prescribed thresholds must dematerialize and obtain ISINs for their securities.
NCD / bond issuers
Issuers of non-convertible debentures, bonds, and other debt instruments held in demat form.
Pre-IPO companies
Required ahead of any public listing — a precondition for stock-exchange listing.
Mutual funds & structured products
MF schemes, REITs, InvITs, AIFs, and other structured securities require ISINs for trading and custody.
Five steps from application to allotment.
Submit your details online
Fill the online ISIN application — company particulars, security type, face value, paid-up amount, contact details. Takes about 10 minutes.
Engagement letter & documentation
We send the RTA engagement letter, tripartite agreement template, and a documents checklist. You sign and upload the required papers through the portal or by email.
Application filed with depository
Regnum files the ISIN application with NSDL and / or CDSL, including all required annexures — board resolution, security details, certificate of incorporation, MOA / AOA, latest financials, PAN.
Depository review & allotment
The depository reviews the application, raises queries (which we respond to on your behalf), and allots an ISIN once approved. Typical turnaround: 7–10 working days.
ISIN issued, you’re live
You receive your ISIN(s) along with the activation letter. Your securities can now be held and transferred in dematerialized form. Regnum continues as your RTA for ongoing registry and corporate-action work.
Standard ISIN checklist
Exact checklist varies by security type and depository (NSDL vs CDSL). We share the full list on enrolment.
A single partner from ISIN to AGM.
SEBI Category-1
Empowered to file ISIN applications directly with NSDL and CDSL.
Fast turnaround
7–10 working days from complete documentation to ISIN allotment.
Documentation handled
We prepare the depository forms, annexures, and tripartite agreement — you sign and submit.
NSDL & CDSL coverage
Apply with either depository — or both, for multiple security types — from one application.
Continuing RTA
Regnum stays on as your registry partner after ISIN allotment — ongoing transfers, AGM/EGM, corporate actions.
Surat-based support
Direct phone and email support during the application — from our Surat office, Mon–Sat.
ISIN FAQs
What does ISIN look like?
An Indian ISIN is a 12-character code starting with the country prefix “IN” followed by a 9-character security identifier and a check digit. Example format: INE…01.
Do I need separate ISINs for different security types?
Yes. Each security type — equity, preference shares, debentures, NCDs, etc. — requires its own ISIN. Different series within the same type may also need distinct ISINs.
Can I apply to both NSDL and CDSL?
Yes, and most listed companies do. Both depositories issue the same ISIN once the security is admitted with them — investors can hold the same security in either depository.
What if the depository raises queries?
Regnum handles depository queries on your behalf. We may come back to you for additional documents or clarifications; once provided, we respond to the depository within their stipulated timeline.
How much does ISIN application cost?
Depository fees and Regnum’s service fees are quoted on enrolment, based on security type and number of ISINs required. We share a clear, written quote before you sign the engagement letter.
Ready to obtain your ISIN?
Start your online application — takes about 10 minutes. Our team will be in touch within one business day.