Chiranjeevi and Balakrishna are biggest superstars in the South.

 The duo actors always have a box office clash.

 The star actors are once again all set for box office clash for this coming Sankranti.

 Chiranjeevi has already reserved date for the release of his upcoming film Mega154.

 Now, Balakrishna is forcing Mythri movie makers to release NBK 107 for Sankranthi.

 Mythri Movie Makers are producing both Mega154 and NBK107.

 Balayya is very serious about the release date of NBK107, he badly wants to get the film released for Sankranthi.

If both films get released for Sankranti, then it's going to be the biggest box office clash of the year