I am renal diet patrient in qatar since 2 years...

Can you get kidney transplant in Canada ?
its highly unlikely if you dont have citizenship there or potentional doner 
how can you get visa due to health reason ?
in this case , your contact in Canada ( the hospital ) should provide the primary papers and invitation for health reasons and should provide it to you as your contact in Canada , then you have to apply your paper to canada embassy in your current location 
What are the indications for kidney transplantation?
1. Kidney function insufficiency
2. Kidney failure
3. kidney injuries
How much does a kidney transplant cost if the donor is available ?
We do not know the exact cost of a kidney transplant, but it ranges between 20,000 - 40,000 $, including the operation and medicine, to prevent rejection of the kidney later.
What are the complications of kidney transplantation?
1. transplant failure
2. Surgical injuries during surgery 
3. rejection of the transplanted kidney
What is the success rate of kidney transplantation?
The success rate of kidney transplantation reaches 96% in the first year after the surgery
The success rate of kidney transplantation is 78% in the first five years after the surgery