Here is what LLM says about two
Pralay: Its "Quasi-Ballistic" trajectory is its biggest asset. It stays low and maneuvers violently in the terminal phase. This makes it extremely hard for Chinese air defense systems (like the HQ-9) to lock onto and intercept.
PHL-191: When firing rockets, it relies on volume (saturation) to overwhelm defenses. When firing the "Fire Dragon" missile, it is dangerous, but reports suggest it lacks the advanced terminal weaving capability of the Pralay, making it theoretically easier for India's S-400 or MR-SAM systems to intercept.