Nath, Jayashree2015-09-162023-10-192015-09-162023-10-192010ROLL NO. 05615202https://gyan.iitg.ac.in/handle/123456789/81Supervisor: M. K. Chaudhury, B. K. Patel & M. K. PurkaitThe contents of this thesis have been divided into two chapters based on the results of experimental works performed during the complete course of the research period. the first chapter of the thesis again has been divided into two parts. ..............enENVIRONMENTThesis