First of all u need to be 100%dedicated. Make ur foundation strong and brush up all the topics. Then start with actual preparation. Follow all the standard books. Abc of physics is really a very good book

hii

if you are really particular about the B Arch and doing in good colleges then really take a year break as if you confident to prepare for it or else go for an alternative 

any how tips from my side for the preparation

You're fortunate that you have multi year to get ready for it! I simply had multi month on feb that too with Boards on head. Yet at the same time I buckled down and expect 230 imprints. 

You can undoubtedly score a 300 in the event that you are reliable with your subjects for multi year. 

For maths, take ordinary JEE level maths instructing as you would improve the situation paper 1. I for one observed that paper 2 maths was simpler than paper 1 maths in 2017. 

For Architectursl bent, purchase Arihant Self Study control for B. Curve. They won't set up inquiries past that. That is the least complex part. 

Indeed, even stylish capacity inquiries can be found in a similar book. You can without much of a stretch score 180 in fitness in the event that you think about that book completely for multi month. Stop. 

Maintain a strategic distance from senseless errors. Particularly on the stylish part. Senseless oversights cost me 20 checks in my exam this year. 

For your illustration part, figure out how to draw dynamic 2D structures, and in particular 3D creations with impact of light and shadow. You should work out on 1 point and 2 point viewpoint. You ought to have the capacity to reflect a picture or develop it to twofold it's size. Elevated view and worm's eye view can likewise come however risks are low. Anybody with normal illustration abilities can without much of a stretch get around 40+ in drawing part. multi week committed to drawing would be sufficient. 

As Boards marks are rejected off our AIR this year, that doesn't imply that you shouldn't stress over your twelfth. Concentrate for sheets associate by side. Paper 2 is simple and 240– 250 imprints would be sufficient for NIT trichy I accept.

hope this helps