im a student of andhra pradesh and going to give my first atempt to iit in this year ,i have one month time outer than my boards so please sugest me a plan which cover imp topics

in physics the important part which deals with every thing is kinematics and trignometry..

maths and all u must be thorough with many chapter... it would have been easier for you if u went to iit coaching class in ur school days itself...

just  revise what you have done in 12th  and try to cover scoring topics like inorganic in chemistry 

hope this will help