Recently, during the shooting of the Telugu film Krishnarjuna starring Nagarjuna and Mohan Babu’s son Vishnu playing the leads, Rajini made a surprise visit to the sets and spent some time with the stars. He is also said to have given some useful tips to Vishnu. And this isn’t the first time! Readers may recall that earlier during the shooting of Sivaji, he made a similar surprise visit to the sets of Dasavatharam and spent some time with Kamal Haasan.