Why Nilesh Rane is leveling serious charges against Bal Thackeray now?

Nilesh Rane, former Congress MP and son of former Mahrashtra Chief Minister Narayan Rane, leveled serious allegations on late Shiv Sena founder Balasaheb Thackeray , accusing him of plotting to get Bollywood playback singer Sonu Nigam murdered on several occasions.
“Attempts to kill Sonu Nigam were made on several occasions by Balasaheb. You may ask him, now Balasaheb is no more, now he can tell how Shiv Sainiks had gone to kill Sonu Nigam at the command of Balasaheb,” Rane said.