U got to read

H.C.verma ,D.C.pandey for physics

Cengage for mathematics

OP Tandon for physical chemistry

J.D.Lee for organic chemistry

And so on

I guess u got the sarcasm

Trust me ncerts(Telugu Academy) are enough for eamcet.U gotta get a score around 115 to get into OU or JNTU which a are the top institutes of telangana.For that you have to score around 35 in chemistry as most of them can be directly answered without any problem solving, and around 55 in mathematics mainly concentrate on Maths -A as it is the scoring part.25 in Physics and keep it for the end .Attempt as many as you can.attempt many mock tests.

All the best !