I remember reading a multi-star comic in which the clash between Parmanu and Nagpasha (Nagraj's uncle, enemy) was shown. Parmanu couldn't kill Nagpasha even with nuclear blasts because Nagpasha has drunk nectar to achieve immortality, but Nagpasha could easily kill Parmanu.
There was this scene in which Nagpasha launched a magical venomous weapon at Parmanu which could only stop after killing Parmanu (the weapon was following Parmanu). Parmanu decreased his size (like Ant Man) and flied at bullet speed right through the stomach of Nagpasha and Nagpasha's weapon followed. He repeated it again and again. Although, Nagpasha couldn't be killed, he could feel the pain. So, he called off his weapon.
Can you please identify the comic?