The Menhir at Imphal
is believed to have been erected in the 15th century AD. A boundary stone, it demarcated the Konthoujam Yumpham (present day Raj Bhavan) and the onetime market place, Kha-keithel (present day Johnstone Secondary School).
Three crude human figures engraved on the Menhir are supposed to be the earliest folk engravings in Manipur. The monument, around 4 x 3 square meter in area, is located on the southern border of the approach road leading from the Kangla Pat highway to Manipur State Museum.