Hello Aspirant,

St.Martins Engineering College's is a very good college affiliated to JNTUH 
one of the finest of its kind. if your eamcet rank is below 30,000 then you might get a seat of computer science branch and what not. study BTech computer science in it hopefully you will get Job in Infosys,TCS, Accenture and IBM for 30,000 per month to 50,000 per month So you should not doubt o placements.

Good luck.