Dear Sirs I am getting information about used Toyota

Dear Sirs,
I am getting information about used Toyota Qualis from
Cartrade india. Most of the vehicles from Bombay,how I can buy the vehicle from Bombay?.How I know what is the condition of the vehicle. Shall I come to Bombay for checking the vehicle or you check the vehicle perfectly.
Other thing is about the cash,I can submit you or I have to give the vehicle owner direct. How can I bring the vehicle to kerala,shall I come and pick or you will arrange ?.what about the transfer procedures.Please give me the full details. I am expecting valuable reply from you.
Thanking you,
George.