Malappuram district has 4.1 million people. Blood demand spikes unpredictably — accidents on NH 66, emergency surgeries at District Hospital, complications in government medical colleges. The gap between "a person with O-negative blood exists in this district" and "we can reach that person in thirty minutes" is a data problem.
Directories that only track name and blood group solve the first half. This template solves both.
Eligibility, Not Just Availability
The critical field that separates a blood group directory from a blood bank database is the donation eligibility monitor. മുൻപ് കൊടുത്ത തിയതി (Previous donation date) combined with the calculated ലഭ്യമായ വയസ്സ് (Available age / months since last donation) creates an automatic eligibility filter.
Whole blood donors require a minimum 56-day interval between donations under Indian health guidelines. A donor who gave last week is not available today. A directory that doesn't track last donation date will mobilize ineligible donors, waste time, and potentially harm the donor. The മുൻപ് രക്തം കൊടുത്തിട്ടുണ്ടോ (Has donated before?) boolean is the first gate; the date field and the calculated availability window are the operational filter.
weight captures donor eligibility on the other axis — minimum 45kg is the standard threshold. A donor who meets the blood group and time interval criteria but is under weight is still ineligible. The field is there to record it.
Geographic Resolution to Panchayat Level
The ജില്ല (District) field anchors the record to Malappuram. Below that, constituency and panchayat fields provide the sub-district resolution that matters when response time is the variable.
Malappuram has 15 constituencies and over 100 panchayats. A B-negative emergency at Manjeri Government Hospital is not well served by a directory that can only filter to district level and then requires calling through 200 names to find someone near the hospital. Panchayat-level geographic filtering reduces that to a manageable list of donors within fifteen kilometers.
ബാർകോഡ് (Barcode) links to the donor's Aadhaar card or ID — the same identity verification pattern used in the earlier DFS Mailing template from this community. പിതാവിന്റെ പേര് (Father's name) provides the deduplication identifier for common names across the district register.
The template's dual date entry field — ചേർക്കുന്ന തിയതി — captures the registration date separately from the birth date, allowing accurate age calculation at time of registration and ongoing eligibility assessment as the registry ages.
When a district-level health worker is managing 500 registered donors across Malappuram, the difference between a flat list and a structured database with eligibility calculation and geographic filtering is the difference between a directory you use in an emergency and one you consult when there's nothing else to do.