2016 Mahamaham (2016 மகாமகம்)[1] is a recurring festival most recently celebrated at Kumbakonam in Thanjavur district of Tamil Nadu, India from 13 February 2016 to 22 February 2016.[2] Mahamaham, also known as Mahamagham or Mamangam, is a Hindu festival celebrated every 12 years in the Mahamaham tank in Kumbakonam.