Case study 04 / Event platform
Bitotsav '26 platform
Registration, teams, points, admin panel and signed-QR entry for BIT Mesra's festival (~5,000 participants), built and run live by the founder as tech lead.
- Type
- Community project
- Category
- Event platform
- Status
- completed
- Built by
- Shaswat Raj
01Context
Bitotsav is BIT Mesra's annual festival. The founder served as tech lead for the 2026 edition.
02Problem
Thousands of participants needed registration, team management, scoring and fast gate entry, including in areas with no network.
03Objective
Run registration through entry on one reliable system during a live event.
04Work performed
- Registration, team and points workflows.
- Admin panel for organisers.
- Signed-QR entry that keeps working in no-network zones.
05Engineering decisions
- Signed QR codes so entry can be verified offline.
- Redis in front of PostgreSQL to absorb peak load at the gates.
06Architecture
- PostgreSQL system of record
- Redis cache layer
- Admin panel
- Offline-verifiable signed QR
07Results
Ran live for a festival of roughly 5,000 participants, per the published write-up.
Evidence
08Technologies
- PostgreSQL
- Redis
- Admin dashboard
- Signed QR codes
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