"A long day with beautiful Rekha costume fittings and discussions for 'Fitoor' love spending time with her and chatting about movies," Malhotra posted on Twitter.
Rekha stars in the Abhishek Kapoor directorial, along with younger actors Katrina Kaif and Aditya Roy Kapur.
Meanwhile, Malhotra has just finished showcasing his summer-resort line at the ongoing Lakme Fashion Week here.
His show, where models paraded in creations of out of his 'The Blue Runway' collection, was attended by Hollywood actress Rosario Dawson, apart from Bollywood's powerful ladies brigade, which was represented by names like Deepika Padukone, Jacqueline Fernandes, Shabana Azmi, Sridevi, Kajol, Huma Qureshi, Neha Dhupia and Richa Chadda.