Rashmika Mandanna is now the most-bankable heroine down south. The actress shot to fame after the hit film Geetha Govindam, which had Vijay Deverakonda in the lead role. Now, she is rumoured to be part of Tamil superstar Vijay's 64th film which is tentatively called Thalapathy 64. However, Rashmika clarified that she is not part of Thalapathy 63 but admitted …