Tripuri calendar
Historically, the Tripura Era was prevalent in all official matters of the princely state of Tippera under the British Raj.Its use in Tripura (Twipra) can be traced to the 163rd king in Tripuri reckoning, Govinda Manikya (fl.1660), and the characteristic shift by three years is first recorded under his successor, Chhatramanikya in 1663/4, who can thus be considered to have introduced the "Tripuri calendar".With the accession of Tripura to the Republic of India in 1949, official use of the Tripuri calendar was discontinued.[citation needed] In 2001, the Tripura Tribal Areas Autonomous District Council (TTAADC) authorities organized a three-day "Tring festival", which concluded at the TTAADC headquarters Khumulwng in West Tripura.