Cinematographer-filmmaker Santosh Sivan, who is busy working on A.R. Murugadoss's yet-untitled Tamil-Telugu bilingual, says the excitement Mahesh Babu's presence brings to a set is beyond belief. The makers have been shooting in the city for nearly three weeks. "The amount of excitement and energy the presence of Mahesh Babu creates in Chennai is astonishing. The star power is enormous. We have shot close to 20 days in Chennai with some major portions covered. We have got the best of combination that will give this film a great avenue to explore the commercial arena to a greater level," Sivan said in a statement.