Behind the Scenes of a Hire-a-Thon: How 40 Recruiters, 12,000 Candidates & One Voice AI Engine Redefined Hiring Efficiency
By Kashish Mrig
Nov 26, 2025

On 31st October, at exactly 11:30 AM, the energy inside the training hall felt unmistakably different. This wasn’t just another briefing session. This was preparation for a high-pressure, high-volume Hire-a-Thon, an experiment to test what happens when you combine disciplined recruiter operations with the speed of conversational Voice AI.
Training Day: Setting the Ground for Precision
A total of 40 recruiters (37.5% of freshers, 62.5% of experienced professionals) reported for the final orientation.
They were split into six randomly formed teams:
Team A (9) – led by Renu (Companies 1, 2, 3)
Team B (8) – led by Zoya (Companies 4, 5, 6, 7)
Team C (8) – led by Aman (Companies 8,9,10,12)
Team D (5) – led by Manish (Company 13)
Team E (8) – led by Shriya (Companies 14,15,16,17)
Team F (4) – led by Kalpana (Company 18)

For 45 minutes, all six teams trained simultaneously under Kalpana’s guidance. The session was crisp, structured and deeply operational:
Logging in and getting comfortable with the system
Complete dashboard walkthrough
Understanding recruitment-dashboard terminology
How call statuses work
How to create a structurally correct job query
And most importantly: how to trigger qualification calls
1st November, 9:50 AM, The Hire-a-Thon Begins
All 40 recruiters reported to Harjoth (Manager – Hunar Select).
Team leaders quickly assigned roles. Each recruiter received 1 role (with 1–2 hiring locations).
A job query in our system is simply a more intelligent version of a JD, structured so that our AI can extract information and begin automated qualification.
At 10:00 AM, we started the stopwatch.
Task 1: Sourcing | 10:00 – 10:30 AM
Each recruiter sourced ~300 candidates for their assigned role using filters and exports.
In 30 minutes, the candidate pool reached nearly 12,000 candidates.
Task 2: Job Query Creation | 10:30 – 10:55 AM
Recruiters applied their training to create job queries for their assigned locations.
Total job queries created: 64
Completed by 10:55 AM sharp
Then, the moment everyone waited for:
At 10:55 AM, every recruiter hit Check Interest.
Within seconds, WhatsApp messages were triggered across all 12,000 candidates, except 685 numbers that failed due to invalid or inactive WhatsApp accounts.
And this single click set off an entire chain of automated intelligence.
Task 3: The AI Pipeline in Action
1. WhatsApp Interest Flow

Candidates could respond with:
Yes → Leads to qualification
No → Loop ends (695 candidates)
No response → AI calls trigger automatically
198 candidates fully completed the WhatsApp qualification flow.
2. Voice AI Qualification Calls
Five minutes later, our Voice AI agent began calling:
Anyone who said “yes” but didn’t complete the flow
Anyone who didn’t respond
Anyone who partially completed the flow (our Voice AI agent only asked pending questions)
Result of First Calling Cycle
4,250 calls picked up by candidates
3,223 total AI call minutes processed
Achieved in: 70 minutes
To put this in perspective:
It would take 40 recruiters, 11 days to do what Voice AI did in 70 minutes.
This is efficiency in raw, operational reality.
Task 4: Qualification, Refreshing in Real-Time
As WhatsApp replies and AI calls continued, the Qualification tab kept refreshing live on the dashboard.
Recruiters monitored candidates who cleared the AI filters, and began making manual calls for deeper assessments:
Expected CTC
Career gaps
Location feasibility
Role nuance and employer-specific expectations
This layered process, AI qualification + recruiter judgement is what makes the model scalable and reliable.
Out of:
4,250 (AI calls) + 198 (WhatsApp) = 4,448 candidates entered the qualification funnel
Candidates who cleared qualification: 1,209

By 12:05 PM, recruiters had manually spoken to 92 candidates.
Average time taken for candidates to pick recruiter calls after 12:05 PM: ~5 hours
Out of 1,209 qualified candidates:
744 were successfully connected with recruiters
311 were lined up for interviews
31 candidates joined
A single day.
From sourcing → qualification → recruiter evaluation → lineups → conversions.
Conclusion
This Hire-a-Thon wasn’t just a recruitment sprint.
It was a demonstration of how technology can reshape operational realities:
Weeks of manual calling → compressed into 70 minutes
Unstructured JDs → converted into extractable job queries
Unpredictable workflows → transformed into measurable funnels
Recruiters → elevated to evaluators, not dialers
40 recruiters.
12,000 candidates.
A fully integrated Voice AI + WhatsApp engine.
