I posted this question on the missile discussion page, but realized later that this is a more appropriate forum.
Team,
One basic question: If we scale up the Agni (i.e. make it carry more fuel / increase the stages / make it longer / heavier), can the IRBM become an ICBM? Or are we trying to develop some path-breaking new technology to increase the range while keeping the size similar?
From the look of it, most of china's ICBMs look like scaled-up versions of the IRBMs (i.e. they are massive in size, configured to carry larger fuel, etc.)
Ofcourse, it is no cakewalk, even to scale up a missile and a lot of hard work shall be required, but it still is much easier than inventing a new technology. Given the urgency of the requirement, I guess we are scaling the missiles up