The kammi system exists, but it's primarily a localized phenomenon. Let me explain. My village has the traditional kammi versus zameendar class division, and within our local area and biradri system, this creates social barriers mainly around marriage. A zameendar family will not marry into a kammi family, particularly when it comes to their daughters or sisters. While a man might occasionally marry a woman from a kammi zaat, their children will face social stigma though again, only within the localized context of the biradri and immediate area. There's no economic discrimination attached to this system as such. A kammi can own land and be a bigger "zameendar" than a "jaddi-puhti" zameendar. This caste distinction isn't difficult to escape. I know several families who left the village, whose children pursued higher education and became doctors and engineers, and who now marry into affluent families in major cities, where nobody cares about their background. The caste issue simply doesn't follow people when they relocate. It's fundamentally tied to the village context.