pragjyotishapur athava pragjyotish asam ya kamaroop ki prachin rajadhani thi, jo guvahati ke nikat basa tha. 'kalikapuran' ke anusar brahma ne prachin kal mean yahaan sthit hokar nakshatroan ki srishti ki thi. isalie yah nagari prakh (poorv ya prachin) + jyotish (nakshatr) kahalayi. mahabharat mean yahaan ke raja narakasur ka shrikrishn dvara vadh kiye jane ka ullekh milata hai.
- kamaroop naresh bhagadatt ne kauravoan ki or se yuddh mean bhag liya tha. mahabharat mean bhagadatt ko pragjyotish naresh bhi kaha gaya hai.
- kalidas ne raghuvansh mean raghu dvara pragjyotish naresh ki parajay ka kavyamay varnan kiya hai.
- kalidas ke varnananusar pragjyotish 'lauhity' (brahmaputr) ke par poorvi tat par sthit tha.