Affairs and linkups are a common feature of the film industry but then it appears that something strong is brewing in Chennai. The grapevine is that a hot link up is making rounds and this has our saucy seductress Kajal Agarwal with Karthi, brother of the hot star Suriya. Both have paired up for a new movie and it is heard that they have been spending few extra hours. However, sources close to Kajal say that it is nothing romantic but they are just getting to know each other for screen comfort.