Solid propellants are what make a missile storable and ready to fire without fuelling, which is why almost every tactical and strategic missile in service uses them. Improving them is therefore less about spectacular new rockets than about squeezing more range and payload from motors of the same size, and doing so without making the material more dangerous to make, move and store - the two goals usually pull against each other, because more energetic compounds tend to be more sensitive. BAM-H24's claim is that it raises energy while staying stable and non-hygroscopic. The route also matters: the work was done in a university centre, not a defence laboratory, which is the model DRDO's Industry Academia Centres of Excellence were created to produce.