What type of details about kalyanji -- anandji  can be gathered from the following bio?  Bio: kalyanji -- anandji are an indian composer duo from gujarat : kalyanji virji shah -lrb- 1928-2000 -rrb- and his brother anandji virji shah -lrb- b 1933 -rrb- . the duo are known for their work on hindi film soundtracks , particularly action potboilers in the 1970s . some of their best-known works are `` don '' , `` bairaag '' , `` saraswatichandra '' , `` qurbani '' , `` tridev '' and `` safar '' . they won the 1975 filmfare award for best music director for `` kora kagaz '' .
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