In invitation letter they said that you will be entering Canada on 17-Month1-2010 and depart 19-Month2-2010.
I asked whether it is inclusive or exclusive of flight travel...but got from the employer saying that it is standard format for visa requesting....
Since employer said that we will give your flight ticket & accomodation only visa get approved. But my doubt if i start from INDIA on 17-Month1-2010 i will reach Canada on 17-Month1-2010. When i depart Canada on 19-Month2-2010, i will reach on 20-Month2-2010 in India. But my Canada visa expires on 19-May-2010 as soon as exist. So when travelling from Canada (19-Month2-2010...Visa expires)--->>Frankfut( 20-Month2-2010...do i need valid visa while in transit)----(20-Month2-2010...India).
2) In Business/ Visitor visa they will mention extact date of travelling & ending date. Or as you said like 6 months...