So, Kabir was a witness to Mr. Kashyap's murder. He must have tried to reveal this secret to the world ! Being the courageous man that he is, I am sure no one could ever deter him from revealing the truth ! Unless, his loved ones are endangered. May be, the murderers threatened to harm Monu his nephew or actually did try to kill him. They might have planned an accident or a kidnapping case, to frighten Kabir. Could it be that Monu and Anurag were friends and Anurag eventually met with the accident which had been planned for Monu. This also explains Kabir's guilt towards Anurag.
And this is the sole reason, Kabir didn't let Ananya get even an inkling about all this bcoz he couldn't dare to risk her or her family's life. And what if this murder mastermind is actually someone close to Shreya? May be the current owner of KKN who is continuing to invest in KKN through his illegal pharma companies. This makes way for a huge business scandal as well where KL and Malvika would also come into picture!
However disappointing it may be for KaYa lovers like me, this whole fiasco has tremendous potential of being a thrilling roller coaster ride. As for KaYa, distance would definitely make hearts fonder ! :)