The minimum temperature of last three days of Ahmedabad, India was about 15, 14, 10 degree Celsius, respectively. Considering, past temperature trend and meteorological data of the Ahmedabad, drastic variations can be seen. The question arises in my mind, "Why, this sudden change in meteorological conditions??" Also, recent rains in the several parts of north India, which intensify the coldness of the region, amplify my curiosity, to think, "Why, rain is happening in the December??" In my knowledge, answer to the above questions lies in the "Monsoon". Yes, the Monsoon of the India have the answer of this Cold Wave. Let us consider the shown below figure of Monsoon Pattern, taken from Wikipedia . It can be seen in the above shown Monsoon Pattern, "Himalayan Mountain Range" and "Ocean Winds" are the major cause of the Monsoon. Now, considering all the above stated reasons, I am predicting that, the Indian Ocean