Civil Aviation Department, Patna invites sealed tenders for a year-long subscription comprising 13 cycles of GPS Navigation Data Cards for four Cessna 172 R aircraft. Bidders must submit technical profiles along with an EMD of ₹50,000 via bank draft. Apply by post or hand at Patna Airport by 28.08.2026. Details are available on the website bihar.gov.in or the public relations board at www.state.bihar.gov.in/prdbihar. Reach the team via email at e-mail-cadbihar@bihar.gov.in or phone at 0612-2225659 / 2224423 or 9905035154.