The human civilization underwent many changes and development with the passage of time. In course of time, cities became the major centers of livelihood. A city has large population compared to a town and a village. Life is a full of activities in a big city. It is a centre of education, trade and industry, recreation etc. Life in a big city starts early in the morning. School children, office-workers, and others fill the roads, bus-stops and the vehicles. The market places get crowded with people. Life in the city has certain charms. The factories and the industrial centers give employment to thousands of people. Those who work hard in cities rise in life. There are certain disadvantages too. Here, neighbors live like strangers. Everyone finds himself in hurry and worry. The atmosphere is polluted. There is competition in every sphere. However, cities add to the economic development of a nation.