Voice AI for Banks & NBFCs
3 min read · Bolcho
Banks and NBFCs drown in phone volume: loan and card enquiries, EMI reminders, and service requests. A Bolcho voice agent qualifies leads, runs payment reminders, and triages service requests in the customer's language — while staying firmly inside BFSI guardrails: no advice, identity verification, and no sensitive data read out over the phone.
By the numbers
The levers a voice agent moves here are concrete — answer every call, act faster, and add capacity without headcount.
Leads ↑
Loan & card qualification at scale
EMI
Payment reminders in the local language
24×7
Service triage and callbacks
Compliant
Verified, disclosed, no advice
Scale the calls, keep the guardrails
Retail banking is a call-volume problem with a compliance ceiling. Bolcho scales lead qualification, EMI reminders and service triage, while the system prompt enforces the guardrails: it discloses it's automated, verifies identity, never gives financial advice, and never reads account details or OTPs aloud.
Built for BFSI rules
No advice, no reading sensitive data, mandatory identity verification, and a fast path to a human for anything regulated or disputed.
The call workflow
What the agent handles end to end, without a human touching the phone:
- 1
Qualify loan/card leads
Capture product, amount, income band and city; book a relationship-manager callback.
- 2
EMI / payment reminders
Remind before the due date and text a payment link; log the promise-to-pay.
- 3
Service triage
Identify the request (statement, block card, branch info), verify identity, and route or resolve.
- 4
Verify + disclose
Confirm identity before specifics and disclose it's an automated assistant.
- 5
Escalate cleanly
Disputes and anything regulated go straight to a human with the transcript attached.
Your production system prompt
Paste this into a Bolcho agent and set {{bank_name}}. It enforces two-sentence replies, hard BFSI compliance, identity verification, and never reads sensitive data aloud.
# ROLE
You are the voice assistant for {{bank_name}}. You qualify loan/card leads, run EMI/payment reminders, and triage service requests.
# COMPLIANCE (hard rules)
- Disclose at the start that you are an automated assistant.
- NEVER give financial or investment advice.
- NEVER read out account numbers, balances, OTPs or full card numbers. Never ask for an OTP or full card/CVV.
- Verify identity (registered mobile + one non-sensitive detail) before any specifics.
- Route disputes, fraud reports and regulated requests to a human immediately.
# LANGUAGE
Mirror the caller — Hindi, Hinglish, Tamil, Telugu, Bengali or English. Switch mid-call instantly.
# STYLE
- Max 2 sentences per reply. Professional and calm.
# GOAL (by call type)
- Lead: capture product, amount, income band, city; book an RM callback.
- Reminder: remind of the EMI/bill due date; text a payment link; log promise-to-pay.
- Service: identify the request; verify identity; resolve or route.
# HANDLING
- Digits: read reference/application numbers back one digit at a time (never full account/card).
- Fraud/dispute: apologise, do not probe, and escalate to a human at once.
- Busy caller: text the callback/payment link and end politely.
# TOOLS
- book_rm_callback(name, phone, product, slot)
- send_payment_link(phone, amount)
- verify_identity(mobile, detail)
- log_request(type, details)
# CLOSING
State the next step in one sentence and thank the customer.What's included
Everything you need to run the play is in the box — no stitching five vendors together.
- Local +91 numbers via Plivo with TRAI KYC routing and automated DND scrubbing.
- Built-in AI CRM: transcripts, call summaries and recordings for every call.
- Payment-reminder links + relationship-manager callback booking.
- Website WebRTC call widget so visitors can talk to the agent from your page.
- Mid-call language switching across 8+ Indian languages in under 200ms.
- Rupee billing near provider cost — ₹1.80–3.00/min, GST invoices.
Put this playbook live
Launch a phone + website agent for your business in Indian languages. No credit card to start.
Frequently asked questions
Can banks use voice AI compliantly?
Yes, with tight constraints. The provided prompt makes the agent disclose it's automated, verify identity, never give advice, never read out account numbers/OTPs/card details, and escalate disputes and regulated requests to a human.
What can it actually do?
Lead qualification for loans and cards, EMI and bill payment reminders with a payment link, and service triage (routing statement, card-block and branch queries). It does not perform transactions or read sensitive data.
Does it ask for OTPs or card numbers?
Never. The system prompt explicitly forbids asking for OTPs, full card numbers or CVV, and forbids reading sensitive data aloud.
Which languages does it support?
Hindi, Hinglish, Tamil, Telugu, Bengali, Kannada, Marathi and more, switching mid-call in under 200ms.