It was believed that even though an Ahom prince became king, he could not attain the status of full-fledged monarch until his Singarigharutha ceremony was completely performed.
But it was not as easy since the ceremony was very expensive and there were records when some of the Ahom kings had to postpone it owing to emergency situations or due to financial crisis of the state.
The ritual was termed Singarigharutha because the wood of singari tree were used to construct the main platform on which the King sat during the procedure.
[8] Afterward the royal couple took their seats in the Solongghar, on a bamboo platform, under which were placed a man and a specimen of every procurable animal.
[14] Before the reign of Swargadeo Rudra Singha it had been the custom for the new king, before entering the Singarighar, to kill a man with his ancestral sword or Hengdan, but the monarch caused a buffalo to be substituted.
One event that occurred during the reign of Swargadeo Chandrakanta Singha in early 19th century, clearly showed the significance of the Kheun rwan mai kaw ceremony.
During Ahom rule in Assam, the Shraddha or the death anniversary of the previous kings were observed annually according to Tai-Ahom traditional rituals.
Purnananda Burhagohain also explained that owing to financial constraint the Singarigharutha ceremony of Chandrakanta Singha could not be performed at his accession.
Chandrakanta Singha became anxious and began to put pressure on the premier to perform his Singarigharutha ceremony, which later became a cause of conflict between the king and the prime minister.
Sometime the ambassadors were granted special privilege to witness the main events of the ceremony along with the festivals and amusements associated with it, as a sign of strengthening the friendly relations with neighbouring kingdoms and tribes.
It was because of their efforts and influence on the royal court, kings and nobles continued to pay their respect to the ancient customs and religious ceremonies of the Tai-Ahom community during the period of Ahom supremacy in Assam.