Maybe in footfalls. Collections may or may not. Kabali's main audience state Tamil Nadu has max ticket price of 120 rupees (even though tickets are being sold in black for thousands), while Baahubali's states Andhra Pradesh and Telangana have no such restrictions. Then north collections and overseas collections will have to be higher than Baahubali to make up the difference.
At any rate it is guaranteed to be atleast second highest. With Rajni films there is no way of predicting how big the film will be.