Why is Bollywood bad at telling real life stories?

Just finished watching Chernobyl and was blown away by how well made the show is. The actors, the screenplay, the editing everything sits so well and although they did make some slight alterations in the story it is still authentic. It made me wonder why Bollywood fails so miserably in telling stories about real incidents.

Recently there has been a surge of biopics but none of them are well made and our filmakers tend to overdramatize them to the point where you wonder if it actually happened.Despite all the talent and creativity in our industry why is our quality of storyelling so poor?