Getting driving license from Louisiana (where i am living now) was hassle free. With our indian driving experience lets us get american driving license easily. All we have to do is first clear a written test and then take a drive test. thats it we get a license with no restrictions.
Previous driving experience in any country counts specially international driving permit. Indian or any other country driving license will also do.
Canada and US driving rules are mostly same. Biggest difference is all the numbers are in miles in USA and Canada and most of the world uses Kilometers.
Its cautiously driving for a few days is whats important and eventually you will get used to it.
A recent scary incident.
Recently tried my hand on a 12 seater van while driving to Miami. At first it all seemed same as a car, real trouble started when i was overtaking a huge lorry at 70+ miles an hour speed. It could be just one of the defective van steering that we hired or may be all of them are like that. You need to constantly keep adjusting the steering wheel to keep it accurately on the road where you want. I was overtaking the lorry in on a bent road and hardly had enough room to. Van was shaking and i was literally scared & scared everyone to before taking good control of it. Also it always rained when i drove, which made it all more difficult to drive.
You can checkout this van and all other cars i drove on my wikipedia page of My & the cars i drove But soon i was one of the very confident drivers who drove that van in the night at 75+ miles constantly for hours together crossing 4 US states Louisiana, Mississippi, Alabama and Florida. Diving had never been so pleasurable, I love US highways.