yep definately he is ............coz whenevr it cums to navin singh ahluvalia ...........his expression is very weird like ..........he wants to say sumthing but he cant!!!
if he wasnt hiding anything then he cud have talked to naina or her parents clearly bout navin .........but he never spoke ............i m sure there is sum mystery behind this ........and rajveer knows a lot about it!!
one more thing ............when rajveer came back frm naina's place ......bunty tells rajveer tht naina is after all a traiter's sis .......at tht moment too i felt rajveer wanted to say sumthing but he was juss shown angry ,kicks the car in anger and sits in the car.................so i m sure there is sumthing behind this navin's mystery bout which rajveer knows
i think it too.