Temporary Visa or Buiness Visitor Visa from UK?

Hi All,

Can anyone help me with the information. Is is very urgent.

One company want to hire me in UK and the problem is I have to go to Canada Office for one month initial training. The hiring manger asked me to get the information about the Visa to canada. Can any one help as how and what Visa I need to apply? I am currently in London. Your help will really help me in getting a job in this recession time in London.

What Visa I need to apply and what are the required documents?
How many days it will take for the Visa processing.
How much is the Visa fee
Do I need to book return tickets? Do I need to book tickets which do not have transit in US as I might need another US transit visa ( as I hold Indian passport)

Thanks for all your help

Best regards,
Praveen