The award was presented to Chamling at a ceremony organised here.
Siddhicharan Shrestha Academy organised the event on the occasion of 105th birth anniversary of the late poet Shrestha.
The award carries a certificate of appreciation and a sum of NRs 100,000.
Chamling, 65, was not present to receive the award.
He has been awarded twice by the Sikkim Sahitya Parishad - Chintan Puraskar in 1987 for the best poem and Bhanu Puraskar in 2010.
An author of many books in Nepali, English and Hindi, he is also a publisher.
