Why is Sanjay Dutt, Madhuri Dixits rumoured affair not part of his biopic?

However, according to the grapevine, Hirani is not keen to depict Dutt's rumoured affair with Madhuri Dixit, on screen. As reported by dna, the biopic will not including this part of Dutt's life, which was much talked-about in the 1990s. The Dhak Dhak