Hum Dekhenge is a popular Urdu nazm, written by the Pakistani poet Faiz Ahmad Faiz. Originally written as Va Yabqá Vajhu Rabbika, it was included in the seventh poetry book of Faiz -- Mere Dil Mere Musafir. From Wikipedia
Maharashtra Police invoke Bharatiya Nyaya Sanhita provisions citing inflammatory remarks and protest poem recitation as threats to national unity.