pThe present work was started in the month of March, 2007 with the receipt of financial assistance of Rs. 28800.00 as 1 installment and the project has continued till 12th March. 2009 with the help of II installment Rs. 18500.00 and has been completed upto the level of previously determined goal.brI am extremely grateful to Dr. P.L. Pareekh, former Principal and Shri. B.S. Shishodia former vice Principal for their constant encouragement to undertake Minor Research Project on the topic of my own interest in the field of environment and of national as well as of local importance.brI am grateful to the U.G.C., Bhopal M.P. for sanctioning of the Minor Research Project entitled, Certain water characteristics indicative of water pollution, eutrophication & lake type- a case study of lake Udiasagar, Udaipur Rajasthan in which I found an opportunity to work as Principal Investigator, without this financial help the work could not have been completed.brI am also grateful to Dr. D.R. Swami, Dr. Mrs. Sheela Bhansali and Dr. N.C. Sharma. former Principals for their keen interest, guidance and providing basic facilities for smooth running of the project.brI am highly thankful to Green Earth Foundation Jaipur, Technoscience Publication. karad M.S., National Institute of Ecology, New Delhi Center for Science and Environment New Delhi. Indian Science congress Association Kolkata, Indian Botanical Society. International Congress of Chemistry and Environment for research consultancy through their world reckon Journals and magazines such as Indian Journal of Environmental Science, Nature Environment and Pollution technology, International Journal of Ecology and Environmental Sciences, Down to Earth & Gobar Times, Every mans science, The Journal of Indian Botanical Society and Research Journal of chemistry and Environment respectively.p