1. School of Chemical Sciences; Mahatma Gandhi University; Kottayam Kerala India
2. Mar Thoma College; Thiruvalla Kerala India
3. International and Interuniversity Centre for Nanoscience & Nanotechnology; Mahatma Gandhi University; Kottayam Kerala India
4. Diagnostics Cables and Capacitors Division; Central Power Research Institute; Sadashivanagar Bangalore India