Hello there,

For now you can contrate on NTSE,

For NTSE stage 1 you need to prepare your state board books of 8( in some cases) , 9 and 10 thoroughly. If you start by july, you will have enough time. Timetables and schedules:- you will know best about your studying schedule and patterns, so I suggest you make a timetable.
For stage-2 : Special tip: Practice MAT well , very well. This year too the MAT paper was tough and lengthy.

RMO: Try to learn as much as possible in the arenas of higher math. Number theory , Combinatorics and Inequalities will give you an edge over the others..

Thank you.