A deep depression over Southwest Bay of Bengal has intensified into cyclonic storm Nivar and lay centred about 410 km East-southeast of Puducherry and 450 km southeast of Chennai, said the India Meteorological Department on Tuesday. According to the weather department, over the next 24 hours it is likely to intensify further into severe cyclonic storm and cross Tamil Nadu and Puducherry coasts between Karaikal and Mamallapuram around Wednesday as a Severe Cyclonic Storm with a wind speed of 100-110 kmph gusting to 120 kmph. (IANS)