The former RBI chief said some southern states are growing with regards to population at below reproduction rate, in other words, the fertility rate has fallen below reproduction rate thus slowing the growth. "In other words, we will start the process of aging at some point around that time, which leads to the alarming question if we don't grow faster, we will grow old before we grow rich, which means we all have all the burdens of an aging population to deal with also at that point," he opined.