It is not true for all over the India, the south Indian region has no issues like this as much as ai know, but northern India is very poor, so poor than the poorest people of Bangladesh! And so many filthy rituals like eating cowdung and drinking cow urine is so popular by the influence of religious scholars which very sad! I suggest you to try south Indian restaurants which are safer! You can find so many videos regarding that. Even in Dhaka city mamy dishonest street shops are using filthy water from drains and I always keep away from those dirty foods. So, don’t rush to these dirty shops whether you are in India or Bangladesh and even in Pakistan because the government food safety department is not working in this region at all!