A new Low Pressure Area is expected to take shape in the Central Bay of Bengal today.Meanwhile, the prevailing upper air circulation has led to sporadic rain in Tamil Nadu and Puducherry yesterday. Vallam in Thanjavur district and Perungaloor in Pudukkottai have received a maximum of 13 centimeter rain in the last 24-hours. <br />''<br />''<span style="color: #222222;">15 districts in the state are expected to receive heavy to very heavy rain in the next 48-hours. Fishermen have been asked to be cautious while venturing into the sea.</span><br />