Bollywood actor Imran Khan, who vowed to file a PIL against the Maharashtra government's decision to scale up the minimum age for liquor consumption to 25 years, asserts he will not endorse a liquor brand.

"I never want to endorse any liquor brand. This is a decision I had taken years ago.

I have been getting a lot of offers but I always say no. I believe one should only endorse what one believes in," said the 28-year-old, who was reportedly approached to endorse a vodka brand.