Daya Nayak, known as 'encounter specialist, is leading Mumbai Police's investigation into the attack on Bollywood actor Saif Ali Khan on Thursday. Watch the video to know more. br br #SaifAliKhanAttack #KareenaFirstReaction #SaifAliKhanHospitalVideo #SaifAliKhanHealhUpdate #SaifAliKhanLatestNewsbr br ~PR.128~ED.348~HT.