I think he will not find it hard to drive. After all, he is managing with the Bangalore traffic and the auto-rickshaws there
Bangalore traffic is much better,people are not that inconsiderate or arrogant as in Kerala. I've rode and driven there as well.
While in Kerala,most people have no idea about their car's front,sides and rear and are driving on just weird guesses. You can see this while seeing vehicles overtaking here. They will be on the right edge of the road while doing it and there will be space for two vehicles in between them,even if the road is wide enough for four vehicles. They will blindly speed towards you flashing their lights on the faith that you will brake and stop for them to do the crazy stunt. Also seems some people dont know where the dipper switch to the headlights are and come at full beam towards you with 100/90,120/100 beams at night. What I do is dip the lights slow down sometimes coming to a halt or going onto the shoulder and keep the car as far as possible to the left side,reason being if atleast he can see,I have a better chance of reaching my destination,even after doing that one of these morons hit my wing mirror.
And regarding the autos,they are driven by the most idiotic and arrogant people you ever can see on the face of the earth,now that they have aquired a new and tougher vehicle,"The Ape". I in fact overheard one of them saying after crashing into my friends 800 head on and causing him 27000 rupees in damages. "Cant understand how the Ape turned turtle after a crash with an 800, This is not supposed to happen. Apes cant be overturned even if it is hit by an Ambassador.
Its surprising" These were the words said by another Ape driver who came to take the vehicle to a workshop. And another fact is the Ape just had a minor dent and a small tear on its soft top even after almost totalling the 800.
So bottom line is Kerala is a warzone when it comes to wheels. Be prepared and expect the un-expected. No harm in being a little too cautious here.