Director Harish Shankar is a die-hard fan of Pawan Kalyan and is currently gearing up for the theatrical release of Ustaad Bhagat Singh, his second collaboration with the actor-politician. However, on Tuesday night, the filmmaker inadvertently stirred controversy after quote-tweeting a Pawan Kalyan fan who wished that Ustaad Bhagat Singh would demolish Mahesh Babu’s existing box-office records. “Thadasthu,” Harish Shankar wrote in response. The post instantly triggered fan wars on social media, even though it was deleted within minutes. Harish douses the flames A short while ago, Harish Shankar attempted to calm the situation by clarifying that he sincerely wishes Varanasi, Mahesh Babu’s upcoming film, becomes a sensational hit. He explained that Tuesday had been a particularly busy day for him. “I was also replying to journalists, well-wishers, and fans who appreciated the promo of a song and were sending their wishes. In that rush, I only partially read a tweet and quoted it unintentionally. Within a minute, my team alerted me and asked me to read the tweet completely. I immediately realised the mistake …