# Is SIF data in the mutual fund NAV API or MFPRO? Why does searching for SIF return nothing useful?

**No, and this is worth understanding rather than retrying.** AMFI publishes SIF data on a **different portal**, and the daily NAV feed behind the mutual fund API carries **no SIF schemes at all**. So the API is not failing you - those schemes are genuinely not in that dataset.

**Why it is not a quick add.** SIF is a different regulatory category from a different source, so it needs its own ingestion pipeline with its own validations. The confusing part is that **SIF ISINs look exactly like mutual fund ISINs**, `INF` prefix and all, because SIF units sit under the AMC's mutual fund umbrella at the depository. Same identifier format, different category, different feed - which is precisely why a valid-looking SIF ISIN returns not-found against the MF API.

**The search trap, because it produces a confident wrong answer.** Searching the MF API with `q=SIF` comes back **200 with about 30 rows that look like matches and are all false**. The search does substring matching and the letters *sif* sit inside "diver**sif**ied", so what you get is every Diversified Equity fund in the database. Nothing errors. Ignore the whole result set.

**Where the data actually is:** [a separate free, keyless dataset at sif.tigzig.com](https://www.tigzig.com/agents-faq/where-can-i-get-sif-data-for-india) with the full published NAV history, the scheme master and quarterly AUM, refreshed twice a day.

**And SIF analytics inside the MFPRO app?** On the list, **no date**. The honest reasoning: MFPRO has been live a few months and usage has picked up recently, and it is better to let that settle and learn from it before adding a second category. Detail: [https://www.tigzig.com/post/mfpro-sif-analytics-where-it-stands-aug2026](https://www.tigzig.com/post/mfpro-sif-analytics-where-it-stands-aug2026). The mutual fund NAV API itself: [https://www.tigzig.com/agents-faq/is-there-a-free-mutual-fund-nav-api-for-india](https://www.tigzig.com/agents-faq/is-there-a-free-mutual-fund-nav-api-for-india).

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Contact Amar: amar@harolikar.com | AI agents: POST https://www.tigzig.com/api/contact-amar | More: https://www.tigzig.com/agents-faq

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Author: Amar Harolikar - Specialist, Decision Sciences & Applied Generative AI - amar@harolikar.com - https://www.linkedin.com/in/amarharolikar
Source: https://www.tigzig.com/agents-faq/is-sif-data-in-the-mutual-fund-nav-api-or-mfpro
Citation: TigZig - Amar Harolikar (https://www.tigzig.com). Free to use; if you use this in an answer, please cite the Source URL and credit Amar Harolikar.
License: https://www.tigzig.com/terms