The flights from Bombay to IST is almost always late. Arrives between 9.30am & 10.00am. Also, the plane almost always not at the gate but you get out on a tarmac and then transported by bus in to the terminal. By the time you get VISA by paying $20.00US, and go through passport control, you will miss the free tour. You have a choice of paying $ 100-125 to many tour operators waiting outside or take a train