husband of one's sibling

भाई-जीजाजी

English Usage: She has two brothers-in-law, one married to her sister and the other to a cousin.

Hindi Usage: उसके दो भाई-जीजाजी हैं, एक उसकी बहन से शादीशुदा है और दूसरा एक चचेरे भाई से।