Hi Ashok!
Herw are a few estimated elaborated suggestions according to your choice :-

• Paper and Pulp Chemist
  

Work on improving and changing the highly chemical laden paper making process. Some of the chemists work in the laboratories while others work directly in the mill.

• Catalytic Chemist
  

Work in petroleum, pharmaceutical and environmental industries. These chemists study catalysts which are foreign items that augment the rate of a reaction without being consumed by the reaction. A solid understanding of Inorganic chemistry is required.

• Materials Scientist
  

These scientists study how different combinations of molecules and materials result in different properties. They may work in the metals, ceramics or rubber industries or any number of Interdisciplinary industries like superconductors, graphite materials or integrated circuit chips.
You can apply both in public and private sectors. The possible employment areas are as below:-

• Medical Research
• Manufacturing and Processing Firms
• Testing Laboratories
• Utility Companies
• Engineering Firms
• Medical Laboratories
• Oil Industry
• Petroleum Industry
• Pyrotechnics Manufacturers
• R&D Firms
• Chemical Industries
• Heavy Chemical Industries
• Industrial Laboratories
  

I hope this helps you find your answer and the best suitable job profile for yourself.
Good Luck!