1 Rupee - Pramatta Singha

Pramatta Singha ruled Assam during a period of sustained Mughal pressure from the west and persistent internal fragmentation among the Ahom nobility. His administration managed to maintain the kingdom's independence, and his coinage reflects a functioning royal mint at Rangpur operating under relatively stable conditions — unusual for the mid-eighteenth century Brahmaputra valley. The Ahom silver rupee tradition at this point was already borrowing weight standards from Mughal coinage, a pragmatic concession to regional trade.

KM#122 is among the more frequently encountered Ahom types, suggesting consistent output across his thirteen-year reign.