Aakanksha Singh has been signed to play Ajay Devgan’s wife in Ajay Devgn Ffilms’ Mayday. It also stars Amitabh Bachchan, Rakul Preet Singh and Angira Dhar in lead roles. Aakanksha joined the unit yesterday (Dec. 11) in Hyderabad where the start-to-finish shooting schedule commenced yesterday itself.