Yes. FD & Series Fares (Fixed Departures and Series Fares) on the Bagdogra (IXB) to Delhi (DEL) route are listed on eazyPNR by verified sellers, such as consolidators and tour operators who hold seat blocks with the airline. Dates, seats and agent fares change with every booking, so the live list is always the place to check.
Register your agency, search IXB to DEL by date and compare sellers, seats left and cut-offs in one place. Submit passenger names exactly as on the travel document by the name deadline shown on the booking, and the PNR and ticket details come back to your account.
You can see the upcoming dates on the Bagdogra to Delhi fixed departures page, then register to see the fares and book.