RaktBeej
Where life begins again.
The problem RaktBeej solves
RaktBeej solves the critical delay in emergency blood donation by instantly connecting requesters with nearby compatible donors.
Instead of manual calls, WhatsApp groups, or hospital dependency, the system uses real-time matching based on blood group and live location to notify eligible donors within minutes.
Time-bound requests, proximity filtering, and instant notifications ensure that only relevant, available donors are alerted, reducing noise and response time.
The result is a faster, more reliable way to mobilize blood donors when every minute matters.
Challenges we ran into
Real-time matching is not trivial
Matching donors by blood group and geographic radius in real time required careful filtering and distance calculations. A naive database query either missed valid donors or notified too many irrelevant ones.
Location accuracy vs usability trade-off
Relying on live latitude/longitude improves precision but introduces dependency on client-side location permissions and accuracy, which can be inconsistent across devices.
Preventing stale emergency requests
Without an expiry mechanism, old blood requests remained active and caused false alerts. Designing a reliable request expiry + cleanup flow was essential to maintain trust.