How castes and caste system in modern India have undergone great changes?

Partly due to their efforts and partly due to other socio-economic changes, castes and caste system in modern India have undergone great changes. With economic development, large scale URBANISATION, growth of literacy and education, OCCUPATIONAL MOBILITY and the weakening of the position of landlords in the villages, the old notions of CASTE HIERARCHY are breaking down. Now, most of the times, in urban areas it does not matter much who is walking along next to us on a street or eating at the next table in a restaurant. The Constitution of India prohibited any caste-based discrimination and laid the foundations of policies to reverse the injustices of the caste system.