Here is Mastaaru Mastaaru Lyrical Song From The Movie SIR, The film stars Dhanush, Samyuktha Menon,Sai Kumar,Tanikella Bharani,Samuthirakani,Thotapalli Madhu, Narra Srinivas, Pammi Sai, Hyper Aadhi, Shara, Aadukalam Naren, Ilavarasu, Motta Rajendran,Hareesh Peradi,Praveena etc.
