my favorite subject are maths and chemistry, for b.tech what branch i should go for 2012

Math and chemistry are common subjects for all branches of Engineering.There is one branch namely Chemical Engineering.

Engineering domains are not that much connected with traditional subject domains... if you want to study chemistry then may be you can go for chemical engineering but its rare, if you take elecrical,mechanical it will have lot of maths but this math will be different from 12th maths