On November 5, a low pressure system formed over the Gulf of Thailand. The system crossed through Southern Thailand and the Malay Peninsula on November 8. The next day, it crossed into the Andaman Sea and lingered there, organizing further throughout the day and intensified into a depression over the Bay of Bengal on November 10. The next day, the system was designated by the IMD as BOB 09. Soon after, the Joint Typhoon Warning Center issued a Tropical Cyclone Formation Alert. At 00:00 UTC on November 11, the deep depression strengthened into a cyclonic storm, and was given the name Gaja by the IMD. After tracking west-southwestward for a number of days, it made landfall near Nagapattinam in southern India, early on November 16 as a Very severe cyclonic storm. Afterward, Gaja passed through Vedaranyam, Voimedu, Muthupet, Pattukotai, Adirampattinam, and Mallipattinam, on the same day. The storm survived crossing over into the Arabian Sea later that day and continued moving westward; however, it degenerated into a remnant low in hostile conditions only several days later, on November 20. Late on the next day, the storm's remnants dissipated near Socotra.
Preparation, impacts and aftermath
Due to the possibility of adverse effects in the coastal regions of Tamil Nadu and Puducherry, early steps were taken by the state governments. About 80,000 were evacuated to 470 relief camps from the districts which were vulnerable to the cyclone in Tamil Nadu. Holidays were also announced in the coastal districts of the Cauvery delta region in Tamil Nadu as well as Puducherry. People were advised not to come out of the house, as the cyclone caused high winds. Preventative measures were explained through all media. At the time of landfall of the cyclone, heavy winds of about 175–180 km/h speed were experienced. The highest wind gust was recorded in Adhirampattinam at 181 km/h, and Muthupet recorded a wind gust of 180 km/h. Regions of Karaikal and Nagapattinam also experienced 100 km/h winds. The affected areas were the districts of Nagappattinam, Thanjavur, Thiruvarur, Pudukottai, Karaikal, Trichy and Ramanathapuram. About 100,000 electric poles, 1,000 transformers, 201 electricity substations and 5,000 boats were destroyed by the cyclone. Thousands of cattle and birds died due to the cyclone. 45 people died, mostly in the districts of Thiruvarur, Thanjavur, and Pudukottai. About 18,000 hectares of Coconut trees were damaged, mostly uprooted. Totally 56,000 hectares of crops and trees were destroyed due to the cyclone.
