It's a movie! Don't classify it as a biopic for 2 obvious reasons
1. Sanjay Dutt is a mere 'Son' of a Bollywood influential and political Star(Sunil) and neither has he achieved anything despite that fact that earns him a biopic.
2. Just like all movies,The Script of 'Sanju' suggests absolute disregard for reality.
Highly Fake and propogandists, these movies showcase exactly what is wrong with Humanity. (We see what we want to see and yet retain only what they want to show)