We have posted many very cheap deals from Europe to India based on various airlines however none of them from Ireland. So althought this does not sound as shockingly cheap offer it is still great deal worth to post here at Flynous moreover based on Lufthansa, the only 5-star European carrier. Currently you can book very cheap return flights from Dublin to New Delhi from €366 or Mumbai €382. This is incl. all taxes, meals and checked bag. You will find even cheaper option based on their Star Alliance partner Swiss Air Lines however these flights require long layover on your outbound..
Lufthansa offers the cheapest flights from November to first half of December 2018 or January to beginning of June 2019. Based on date of your outbound flight from Ireland to India. Max stay 3 months. Book this Lufthansa promotion by 25th of November. Book your hotel room in New Delhi or Mumbai through Booking.com or Hotels.com.
Dublin – India from €394 (Directly with Lufthansa or if you need to compare all the cheapest travel dates)
Booking sample of lufthansa flights from Dublin to India from €366 return! In this case you would depart from Dublin to Delhi via Frankfurt on 3rd of March. Return from India back to Ireland on 18th of March 2019.