They are certainly now, if they are were not before. Mobility like depends on opportunities you get, that starts from your parents social-economic status, the s

They are certainly now, if they are were not before. Mobility like depends on opportunities you get, that starts from your parents social-economic status, the schools you attend, the connections your family has etc if you grew up in a city or a small town. Caste strongly correlates with this, children of higher caste families tend to be richer or have rich relative, have extended family working in well connected places, have well educated parents and grand parents and have access to better schools.