Here is a video that explains the system in Indian.
Also a video that gives a glimmer of what happens in modern Britain
I was born in a place full of Indians, the town is nicked name ‘Little India’ so my school was full of asians. I was lucky as my parents never told me my caste, so when I was questioned at school I said I didn’t know. But the fact young people aged between 8-10 was asking the question and groups where being made at such a young age, shows that the system is in effect.