Asin and Ajay Devgan had a fun time shooting for London dreams. A unit source revealed. "Ajay would always pull Asin's leg and sometimes Asin would play pranks on Ajay. One day two challenged each other on tongue twisters.

Ajay challenged Asin to speak Hindi tongue twister at one go, while Asin would challenge Ajay to English tongue twisters." And invariably Asin would land up winning the game. The source continued saying, "Asin met Kajol too on the sets of London Dreams.

The two got along well." Apparently Asin met Kajol for the first time during the Ghajini shoot. "The two happened to be shooting in the same studio. Asin was shooting for Ghajini, while Kajol was shooting for Toonpur Ka Superhero.

Asin went up to Kajol when she got to know she was in the same vicinity. The two have known each other since then."