Orathanad (or Mukthambalpuram; sometimes Orathanadu) is a town in Thanjavur district of the Indian state of Tamil Nadu.

On 27 November 2008 Orathanadu broke the 65-year-old record for the highest rainfall in 24 hours in Tamil Nadu,[2] registering 660 millimetres (26 in) and exceeding the 570 millimetres (22 in) registered by Cuddalore on 18 May 1943.

However, Orathanadu lost the rainfall record to Kethi in the Nilgiris district after the town recorded 82 centimetres (32 in) of rain in 24 hours during early November 2009.

1,078 children are in the age group of 0–6 years, of which 511 are boys and 567 are girls.

[1] As of 2001[update] India census,[4] Orathanadu (Mukthambalchathram) had a population of 10,268.