1. Department of Applied Chemistry; Indian Institute of Technology (ISM); Dhanbad 826 004 Jharkhand India,Ph: +91 326 2235607Fax: +91 326 2296563
2. Presently Department of Chemistry; Indian Institute of Engineering Science and Technology; Shibpur, Howrah West Bengal- 711103 India.
3. Department of Zoology; The University of Burdwan, Burdwan; West Bengal- 713104 India.
4. Department of Zoology; Institute of Science, Banaras Hindu University; Varanasi- 221005 India