This is the original poem written by Ram Prasad Bismil, when he was in Jail...

Sarfaroshi ki tamanna ab hamaray dil meiN hai, dekhna hai zor kitna baazuay qaatil meiN hai karta nahiN kyuN doosra kuch baat cheet, dekhta hun maiN jise voh chup teri mehfil meiN hai ay shaheed-e-mulk-o-millat main teray oopar nisaar, ab teri himmat ka charcha ghair ki mehfil meiN hai waqt aanay dey bata deNge tujhe ay aasmaN, ham abhi se kya batayeN kya hamare dil mein hai khainch kar layee hai sab ko qatl honay ki ummeed, aashiqoN ka aaj jumghat koocha-e-qaatil meiN hai

Updated: To my surprise, i came to know that that’s not all that it has to say.

Follows the complete bismil poem:

Sarfaroshi ki tamanna ab hamaare dil mein hai Dekhna hai zor kitna baazu-e-qaatil mein hai

aye watan Karta nahin kyun doosra kuch baat-cheet Dekhta hun main jise who chup teri mehfil mein hai Aye shaheed-e-mulk-o-millat main tere oopar nisaar Ab teri himmat ka charcha ghair ki mehfil mein hai Sarfaroshi ki tamanna ab hamaare dil mein hai

Waqt aanay dey bata denge tujhe aye aasman Hum abhi se kya batayen kya hamare dil mein hai Khainch kar layee hai sab ko qatl hone ki ummeed Aashiqon ka aaj jumghat koocha-e-qaatil mein hai Sarfaroshi ki tamanna ab hamaare dil mein hai

Hai liye hathiyaar dushman taak mein baitha udhar Aur hum taiyyaar hain seena liye apna idhar Khoon se khelenge holi gar vatan muskhil mein hai Sarfaroshi ki tamanna ab hamaare dil mein hai

Haath jin mein ho junoon katt te nahi talvaar se Sar jo uth jaate hain voh jhukte nahi lalkaar se Aur bhadkega jo shola-sa humaare dil mein hai Sarfaroshi ki tamanna ab hamaare dil mein hai

Hum to ghar se nikle hi the baandhkar sar pe kafan Jaan hatheli par liye lo barh chale hain ye qadam Zindagi to apni mehmaan maut ki mehfil mein hai Sarfaroshi ki tamanna ab hamaare dil mein hai

Yuun khadaa maqtal mein qaatil kah rahaa hai baar baar Kya tamannaa-e-shahaadat bhi kisee ke dil mein hai Dil mein tuufaanon ki toli aur nason mein inqilaab Hosh dushman ke udaa denge humein roko na aaj Duur reh paaye jo humse dam kahaan manzil mein hai

Wo jism bhi kya jism hai jismein na ho khoon-e-junoon Toofaanon se kya lade jo kashti-e-saahil mein hai

Sarfaroshi ki tamanna ab hamaare dil mein hai. Dekhna hai zor kitna baazuay qaatil mein hai.

-Source: Wikipedia