PortfolioThe LabApproachStackFounderGet the drop
PRARAJ LABS · APPLIED AI · EST. 2026

AI that picks up
the phone, and
finishes the job.

Praraj Labs is an applied AI studio building voice-first products that answer the call, speak your customer's language, and complete real work — bookings, orders, enquiries. A portfolio of bets, one operating standard.

Explore the portfolioHow we build
Products live
00
Languages
0+
Modality
Voice-first
Live call · 00:38
praraj/voice
AI
“Namaste! Thanks for calling — how can I help today?”
Caller
“Aaj raat 4 logu ki table dorukutunda?”
AI
“Yes — 8 PM ki window seat undi. Confirm cheyamantara?”
VAD 0.41Latency 280msSelf-heal ON
AahvanaSmashDesk8 Indian languages
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●   Live · Aahvana in production at restaurants●   Beta · SmashDesk onboarding badminton centers○   In the lab · drop_03 pending●   Stack · Twilio · Gemini · Supabase · FastAPI●   Voice · 8 Indian languages, code-switched
The Portfolio · 01 / 03

Bets currently in the world.

Each product is its own brand, its own thesis. The lab is the throughline — same taste, same telephony spine, different surfaces.

Bet 01 · Live in production·multi-tenant SaaS
Aahvana logo — ornate saffron flame

Aahvana

An AI phone receptionist for restaurants. Guests call your number, speak in their own language, and walk away with a booking or an order — no human on the line, no missed calls after hours.

  • —Speaks 8 Indian languages, code-switched mid-sentence — handles an English phone number spoken inside a Telugu line, in real time.
  • —Bookings, takeaway and dine-in orders, enquiries — and it texts the menu + confirmation by SMS, 24/7.
  • —Self-healing telephony. After each call, Gemini retunes the next call's VAD and noise floors — no human touches a config.
  • —Multi-tenant. One platform, many restaurants, each with its own number, voice, and isolated data.
Visit AahvanaTwilio · Gemini · live in production
On call · 00:42+61 04xxxx
Inbound · Deccan Dine In
Booking in progress
AI
“Namaste! Thank you for calling Aahvana — how can I help?”
Caller
“Aaj raat 4 logu ki table dorukutunda?”
AI
“Yes sir, 8 PM ki window seat undi. Confirm cheyamantara?”
VAD 0.42Lat 280msSelf-heal ON
8 Indian languages
smashdesk · admin · multi-courtWed · Today
On call · 02:18 · booking court 2
Court 1
Court 2
Court 3
5 PM
6 PM
7 PM
8 PM
9 PM
Booked · just now · via voice call
Court 2 · 7–8 PM · Ravi (+61 04xxxx)
SMS sent
Caller transcript
“Anna, badminton court, 7 PM nundi 8 PM varaku book chey, my name Ravi, number 04xxxx.”
Bet 02 · Private beta·onboarding centers

SmashDesk

The same voice spine, pointed at badminton centers. Members call your court, talk in their language, and walk out with a booking — no missed calls, no one on hold.

  • —Court bookings on the phone. Live slot check, automatic block, SMS confirmation.
  • —Enquiries on autopilot. Rates, coaching, membership, hours — same answer every time, in any language.
  • —Multilingual by default. Telugu, Hindi, English — code-switched mid-sentence, like a real receptionist.
  • —Multi-tenant. One dashboard, many centers, each with its own number, voice, and court inventory.
Visit SmashDeskTwilio · multi-tenant SaaS · private beta
Bet 03 · In the lab·unannounced
?

█████████

We're building the next one.

Praraj is a portfolio. Aahvana and SmashDesk are the first two bets — more are in the lab. Get the drop the day the next one ships.

email
Currently in researchno spam · one note per ship
specimen
?
classified · prototype
drop_03 · pending
The Approach

One voice spine. Five moves.

Every Praraj product runs the same loop — pick up, understand, decide, speak, finish. We obsess over the milliseconds in between, because that's where a call either feels human or doesn't.

01

Pick up

Telephony

A real phone number, answered on the first ring — 24/7, no hold music, no voicemail.

02

Understand

Speech-to-text

Streaming speech recognition that follows a caller code-switching between languages mid-sentence.

03

Decide

Realtime reasoning

Live reasoning checks availability, prices, rules — and holds the thread of a real conversation.

04

Speak

Text-to-speech

Natural, telephony-grade voice that can be interrupted and pick the thread right back up.

05

Finish the job

Action + SMS

Books the table, takes the order, texts the confirmation — then files it in the dashboard.

<0s
Round-trip latency
0+
Languages spoken
0/0
Hours covered
00
Calls to voicemail
Inside the Lab

A lab is a way of working, not a building.

Praraj operates like a portfolio fund with a single shipper. Each bet has its own brand, its own roadmap, and its own metric of truth. The lab keeps the throughline: taste, latency, restraint.

Principle · 01

Voice-first by default

Typing is a tax. If the user's hands or eyes are busy, the agent should still work.

Principle · 02

Ship in weeks, not quarters

A product proves itself in the wild. Internal demos prove nothing.

Principle · 03

Restrained surfaces

An agent should feel like a quiet colleague, not a slot machine. Fewer pixels, more presence.

Principle · 04

Real world, not benchmarks

If it doesn't survive a noisy kitchen or a Monday inbox, it isn't real.

Under the hood

Boring stack. Surprising voice.

Every Praraj product runs on the same telephony → ASR → reasoning → TTS spine. Battle-tested components, opinionated glue.

Hover any logo to see its role in the system.

Telephony
Twilio

Phone numbers + real-time call streaming.

Speech-to-text
Google Cloud STT

Streaming ASR with code-switch handling.

Realtime reasoning
Gemini 1.5 Flash

Live intent + dialog state, <1s round-trip.

Self-healing engine
Gemini 1.5 Pro

Post-call analysis + self-tuning VAD/RMS.

Text-to-speech
Google Cloud TTS

8 kHz native voice synthesis, telephony-grade.

Database
Supabase

Multi-tenant Postgres with RLS isolation.

Backend
FastAPI

Telephony server. WebSockets + async Python.

Frontend
Next.js 16

Admin dashboards + marketing. Server components, edge-ready.

The clever bit

Self-healing telephony.

After every call, Gemini 1.5 Pro reads the recording and mathematically retunes the next call's VAD silence thresholds and RMS noise floors. The agent gets quieter rooms, calmer callers, and tighter barge-in — without a human touching a config file.

Prafful — founder of Praraj Labs
Prafful Gadadasupraraj/people
Founder

One operator. A lab in his head, products on his calendar.

Praraj Labs is run by Prafful — a solo founder with a builder ethos: ship the small thing that proves the bigger thesis, then ship the next one. The portfolio is the strategy; the phone line is the proof.

Get in touchSee Aahvana live
The Drop

A short note when something ships.

No roadmaps, no manifestos. Just the link, the day it's real.

Or just say hi — support@prarajlabs.com