A preliminary report of an investigation into caste discrinimation with regard to Cyclone Thane by National Dalit Watch–National Campaign for Dalit Rights conducted on 18, 19 January 2012
Cyclonic Storm Thane was the strongest tropical cyclone of 2011 within the North Indian Ocean. Thane initially developed as a tropical disturbance within the monsoon trough to the west of Indonesia. Over the next couple of days the disturbance gradually developed further while moving towards the northwest, and was declared a Depression during December 25, before being declared Cyclonic Storm Thane during the next day. As it was named, Thane started to turn towards the west under the influence of a subtropical ridge of high pressure before its development slowed down during December 27, as a strong outflow and marginally favourable sea surface temperatures fought with persistent vertical wind shear. After its development had slowed down during December 27, Thane became a Very Severe Cyclonic Storm during December 28, before as it approached the Indian states of Tamil Nadu and Andhra Pradesh, it weakened slightly. Thane then made landfall early on December 30, on the north Tamil Nadu coast between Cuddalore and Pondicherry and rapidly weakened into a depression.
Cuddalore and Vilipuram Districts in Tamil Nadu and Pondicherry were the worst affected due to Cyclone Thane. All roads in these three districts are line by wreckage of fallen trees including large tracts of Casuarina plantations completely wiped out. The only trees that seem to have withstood the fury of the cyclone seems to be the Borassus flabellifer or the Palmyra Palm. According to government estimates at least 39 people have been killed by this cyclone in Tamil Nadu and 7 in Pondicherry. Apart from the loss of life, the Cyclone left huge destruction in terms of livelihood, particularly agricultural livelihood and ripped apart the green cover in these already arid districts.