Anurag Kashyap says he was "scared" when his family received threats for his tweets criticising the ban on Pakistani artistes from working in Bollywood in 2016.
The film-maker says he now just posts his opinion and does not read the responses to it. This way, he says, he has been able to increase his productivity.
Kashyap had come out in support of his film-maker friend Karan Johar, who faced protests during the release of 'Ae Dil Hai Mushkil' (2016), which featured Pakistani actor Fawad Khan in a pivotal but small role.
In a series of tweets, Kashyap had asked why only Indian film-makers should be targeted for casting Pakistani actors when Prime Minister Narendra Modi also visited Lahore.
The 'Mukkabaaz' director says after he posted the tweets, people started targeting his personal life.
"During the 'Ae Dil Hai Mushkil' controversy, when I tweeted to the prime minister, people went after my personal life, (they) started threatening my parents. My family got scared. That was very, very scary," Kashyap told PTI in an interview.
"The trolling went on for six-eight months," he says.
The film-maker says his opinion on the controversy over Sanjay Leela Bhansali's film 'Padmaavat' also rubbed some people the wrong way.
"Social media has kind of levelled the field. People use it to bring others down, silence others and threaten them. During 'Padmaavat', it had happened, they put out my number on the social media because I had an opinion," he says.
The 45-year-old director, will be seen in the finale episode of MTV Troll Police.