Upcoming/Open/Closing Soon/Closed auto-update daily from Bid Start Date and Bid Submission Last Date. Picking Corrigendum Issued/Extended/Cancelled/Awarded locks the status - choose an auto option again to release the lock.
Department/sector grouping - e.g. Railway Tenders, PWD Tenders, IT/Computer Tenders.
Procurement method - Open Tender, Limited Tender, EOI, RFP, RFQ, NIT, Auction, etc. Add more anytime.