Hi Nitin,
The pleasure is mine and am glad that my thread has assisted you in your decision making.
Welcome to TAI. I am sure you will have a great time here. Congrats on the booking of your new machine. Brio looks stunning in red, so good choice of colour.
You can get Handrest at any local accessory shop. Since I stay in Gurgaon, I got it done form Sector 14 market, its a shop called 'Sixth Sense".
Factory fitted headlights are pretty good. I haven't felt the need to upgrade yet, and Gurgaon roads are worse.
Fog lights are good to have, but the dealership quoted 11 k as far as I can remember for the same, so I had decided to postpone it and wait till winter. But now I don't think I will require it.
I suggest get things like corner protectors , side guards etc from dealer. Other stuff like mudflaps, rubber mats etc can be brought from out side, it will be cheaper.
One last thing, do make sure you do a thorough PDI of the vehicle. Take a printout of the PDI checklist from TAI and do a total checkup before you send the car for registration.
Lastly, please feel free to put in any queries/suggestions on the forum. We have a lot of BRIO owners on TAI who can help.