Zerodha Coin Goes Live with Fixed Deposits, Powered by Blostem
Zerodha launches Fixed Deposits on its Coin investment platform, powered by Blostem's unified banking infrastructure. Users can now book FDs from select small finance banks digitally — with rates up to 8.15% p.a. — without needing a separate savings account.
Zerodha Coin Adds Fixed Deposits, Powered by Blostem
Zerodha — India's largest discount broker — has gone live with Fixed Deposits on its Coin investment platform, expanding Coin from a mutual fund destination into a broader passive-investment hub. The FD offering is powered by Blostem, the B2B banking infrastructure startup in which Zerodha's Rainmatter has invested.
The launch follows the partnership announcement made in October 2025 and the pre-Series A investment from Rainmatter that closed in November 2025.
What Coin Users Get at Launch
Coin's FD experience is designed to feel native to the broking platform — no separate savings account, no branch visits, no paperwork shuffles:
- Multi-bank rate comparison across partner small finance banks
- Up to 8.15% p.a. on select tenures and partner institutions
- Fully digital booking with paperless onboarding
- Single dashboard showing invested amount, accrued interest, and maturity schedules
- DICGC insurance of up to ₹5 lakh per depositor, per bank
Partner banks at launch include Suryoday Small Finance Bank and Utkarsh Small Finance Bank, with more institutions in the pipeline.
The Infrastructure Behind the Product
Coin's engineering team integrated a single Blostem API to access an entire network of banks and NBFCs — without the multi-quarter effort of building direct integrations with each partner. Blostem handles the harder parts behind the scenes: KYC orchestration, bank-side compliance, FD booking workflows, maturity servicing, nominations, and the operational machinery of working with regulated institutions.
This is the same playbook Blostem has run with MobiKwik, Jupiter Money, Upstox, JioFinance, and other large platforms — each launching FD distribution in weeks rather than quarters by plugging into a single, unified banking layer.
Why This Matters
Fixed deposits remain India's most trusted savings instrument, with a market exceeding ₹131 lakh crore. Until recently, distribution required either being a bank or stitching together bilateral integrations with one. Blostem's infrastructure collapses that complexity into a single SDK — and Coin's launch is the latest validation that even the most engineering-led platforms in Indian fintech prefer to build on top of it rather than reinvent it.
For Coin, FDs broaden the platform's appeal beyond mutual funds and ETFs to investors looking for predictable, low-volatility returns. For Blostem, the launch deepens an existing partnership and brings its rails to one of India's most loyal retail investor bases.