The formation of new crossbred cattle breeds to increase milk production was started in India because of crossbred cattle were more economical and gave higher milk yield than the indigenous cows and increase the income of a farmers, dairy entrepreneurs and provide beneficial and round the year employment to them. Therefore, population of crossbred cows should be increased simultaneously with Artificial Insemination programme to increase profitability to the farmers and dairy industry.

Lakes sediments consists of biological and non biological matter accumulated since from formation of the lake. Sediment sequence in lake represents information about the activities within the lake and in its catchment area over a period of time since its inception. Hussain Sagar Lake located in the heart of Twin Cities of Hyderabad and Secunderabad receives toxic substances from the industrial effluent discharges in to it through incoming nallas.