Regarding Visa Tourist visa (L)

I'm Nepali passport holder and going to attend a workshop in Toronto Canada on 21-25 Oct 2019 and will return back from Toronto to Nepal on 29 Oct. During back to Nepal, I also want to visit Canton Fair in Guangzhou China from 31-04 Nov, and 4th Nov wants to back to Nepal. At the moment, my passport is in the Canadian High Commission, New Delhi for the visa process. I will have no time to apply for the Chinese visa at Kathmandu Nepal. At this circumstance, may I apply for Chinese Visa in Toronto, Canada?
It would be more appreciated if I will get the right answer.

Thanking you.