The battle of Longewala was an important battle in the Indo Pak war 1971 as Longewala was between Sadhewala and Ramgarh. Listen to the background of this war, and about the ground operations of the battle of Longewala.
The poem is Sarforashi Ki Tamanah by Ram Prasad Bismil.
Detailed information can be found on these sites.
https://usiofindia.org/publication/usi-journal/battle-of-longewala-2/
https://thewire.in/south-asia/elections-that-broke-pakistan-1970-history
https://theprint.in/opinion/the-1971-battle-of-longewala-a-night-of-confusion-sam-manekshaws-order-pakistans-folly/329321/
