Learn English – is there a one word synonym for tears in happiness

In the very broad sense, I would regard the first kind ("Kusanskar") as superstition, and the second kind ("Sanskar") as custom or tradition.

You may want to consider other terms related to superstition, too, such as black magic or sorcery. Also, another word I conjured while reading about the corrupt spiritual lottery you described is simony, which is:

the buying or selling of sacred or spiritual things, as sacraments or benefices

If you want to stress that these beliefs are untrue, despite how some might believe in them, you could also use the word delusion, which means:

a false belief or opinion that is resistant to confrontation with actual facts

I think you have answered your own question. In idiomatic English we would render it with never: "I've never heard of it." (perfect tense works well here). That's 6 words, only two more than Russian, which is not bad for an analytic language like English.

A dictionary gives further examples