Thanks for your brotherly advise. Yes, definitely I will look for both options in detail before opting for one, its just that your above post and reviews else where aren't favoring Cultus Auto, so I am inclined towards imported either Passo or Vitz.
Yesterday, I went to Suzuki dealership, the salesman couldn't brief me properly about the advantages of buying Cultus Auto, it looks he lacks some basic knowledge about the car. When I asked, Is this Cultus fully automatic? He said, sir the steering, windows are fully powered however, the gear shift is not fully automatic. When I asked then why it is being said as Cultus Auto? He said, "sir mujhe confirm nahi, bus sab yehi kehte hai k gear fully automatic nahi hai " I was stunned to get this lame answer by a salesman.