Chennai records 36 cm rain as IMD warns of very heavy showers in Tamil Nadu till October 21

New Delhi, Oct 18 (UNI) Torrential rain battered Chennai, with Parrys recording 36 cm and Kathivakkam 34 cm in the 24 hours ending Sunday morning, as the India Meteorological Department (IMD) warned of further heavy to very heavy rainfall at isolated places across Tamil Nadu, Puducherry and Karaikal until October 21. The IMD's evening weather bulletin, issued at 4.46 pm, said Chennai Central received 27 cm of rainfall, while Thiruvottiyur and monitoring locations in Ennore recorded 22 cm each during the 24-hour period ending at 8.30 am. MGR Nagar recorded 19 cm, Tondiarpet and Perambur 18 cm each, Vadapalani 16…