Tamil Nadu has recorded a jump in wild elephant numbers as per the synchronised Elephant Population Estimation Report. There are 2,961 elephants - up by 200 elephants from 2017 estimation. The synchronised survey covered TN, Kerala and Karnataka from May 17 to 19 this year.In 2012, there were 4,015 elephants; up from 3,867 in 2007. In 2002, there were 3,737 elephants, the report said. However, factors like developments, electrocutions and accidents on rail tracks led to fall in the number of elephants to 2,721 between 2012 and 2017,...