The poem "Subh-e-Azadi" was written by Faiz Ahmed Faiz, a renowned Pakistani poet known for his stirring verses and profound themes. This makes option 2 the correct answer.

Option 1, Sahir Ludhiyanvi, was an influential Indian poet and lyricist. Although he wrote many noteworthy poems, "Subh-e-Azadi" was not one of them.

Option 3, Muhammad Iqbal, was a prominent poet, philosopher, and politician from British India who inspired the Pakistan Movement. He did not write the mentioned poem.

Option 4, Maulana Abul Kalam Azad, was an Indian scholar, independence activist, and senior leader of the Indian National Congress. While his contributions were significant, they lay not in the realm of poetry, but in politics and academia.

In conclusion, the poem "Subh-e-Azadi" was exclusively the work of Faiz Ahmed Faiz, making any other option incorrect.