What the difference between many and some?

Many means - कई and Some means - कुछ Is that clear now?

Some       A little, a few or small number or amount.               We usually use some in positive sentences for countable and uncountable nouns.                I have some friends in London.                I usually drink some wine with my meal.                Sometimes we use some in a question, when we expect a positive YES answer.                Would you like some more tea?                Could I have some more sugar please?

Many use for countable noun or things and some use for uncountable nouns .

how many is used for countable noun while How much is used for uncountable noun.. eg. how many friends do you have? eg how much milk is there in the glass?

many: countable nouns (bottles of milk, jars of marmalade, dollars, minutes etc.)