From previous

...by mid day Farhan had collected all the mobile phones records of Kathy and reported  inspector  tanvir,  but nothing much was gathered from it, ,Farhan was giving him the details,  Kathy  had  mostly spoken  telephonically   to musical  functions  management,  Farhan  instructed him to prepare list of all the callers and others she had made conversation with,  and bring them all under investigation,  Farhan   discovered   in between  from another sim kathy  had   thrice   called her  own mother who lived in another town but she too had no new information to share with him,  only that  Kathy had a surprise for  her mother,  tanvir asked what was the surprise , Farhan explained  her mother was not aware of it, all she knew was  Kathy soon wanted to give her a surprise,  tanvir thought it was rather confusing  Kathy was fully dressed for a function  of some special kind,  right, agreed Farhan  her mother had said it was Kathy  s birthday day second February and she was dressed for the occasion 

But something is definitely there not clear and with that a flash In tanvir s mind  flashed an image  of a man with the car  dubious character  approach  in the city footage,  tanvir began seriously rethinking over the matter 

What could be it, nothing  suspicious came out from Kathy s phone record,  therefore she was specially dressed for someone and waiting for him and his information must be there somewhere  of his coming