what happened in the 2nd song is that, Calm and ABJ were resting after the chase from the police, and "the professor" saw them resting, and was snitching on them to the police, and Seedhe Maut noticed him, and kidnapped him
The bag could be a reference from an old bar "I've murdered your favourite rapper and now he's in the body bag but the whole problem is where shoud we drop the bag now" it sounded much better in Hindi.
If you find English translation damn.... Ayyyy someone plz give him English translation...damn u have to know what they are speakin...then u really understand the name of this duo "SEEDHE MAUT ☠"