There are many courses available in masters degree like M.Tech in chemical reaction engineering , chemical plant design , coal chemicals and fertilizers , fluid dynamics , petroleum exploration & production , polymer science and engineering , process dynamics and controls , technology of vegetable oils , fats and detergents and above that you can do M.Tech in chemical engineering with following specialization 1. Modern methods of chemical analysis, 2. Membrane separation process, 3. Design, 4. Simulation and optimization, 5. Kinetics and catalysis, 6. Safety and hazard engineering, 7. Fluid mechanics, 8. Two phase flow, 9. Colloid and surface science 10. Industrial pollution abatement, etc
All above said courses are available in most of the IIT, NIT, ANNA UNIV, and at other leading engineering colleges in India. You need get good percentile in GATE examination which conducted by IIT at every first Sunday February month.