Why did Puri leave Congress?

The way Politically senstive subjects are sensationalized in 'Cameraman Ganga Tho Ram Babu' has not done any good for the careers of Pawan Kalyan and Puri Jagannath. It is an open secret that Puri has close relations with YSR Congress and he also had an idea of making a biopic on the political life of Late Chief Minister YSR. Meanwhile, when Jagan Mohan Reddy is lodged in Jail, the film idea was dopped.

Apparently, many of the episodes in 'CGR' speak against the present day politics targeting many leaders focusing YSR (character of Naasar) in positive light. But a personality like Pawan, who has a powerful stature in Andhra Pradesh approving this kind of low quality product at the cost of very few message oriented scenes is debatable. In fact, at a time when Mega Star Chiranjeevi is becoming a key member in Congress. May be that is why, Puri exempted Congress indirectly attacking TRS, TDP.