The stamp is designed by the Governor himself and synthesises mountain landscape that inspired Pant's poetry, with picture of the poet.
Pant became the first literary figure from the hill state to have been bestowed the honour.
DescribingPant as a great poet and philosopher of the 20th century, Paul saidit was society's responsibility to honour "tapasya" (dedicated hard work) of writers and poets.
Releasing commemorative stamp is a step in that direction, he said.
He also announced his plans to develop Kausani, the poet's birthplace, as a retreat for writers and poets.
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The Governor said Pant was one of the pioneers of the 'Chhayawad' movement in the Hindi poetry.
Quoting from his famous poem "Almore ka Vasant", Paul said 'Chhayawad' was deeply linked to nature and environment.
"I call upon all the people to get closer to their natural surroundings and protect nature. The poetry of Sumitranandan Pant is an eternal inspiration for every generation,"he said.
Sumita Pant, the adopted daughter of Sumitranandan Pant, expressed her gratitude at the honour given to her father.
She quoted from the poem "Meri Beti Sumita", an emotional poem of Pant ji, whom she called "Daddu".