<prompt> Constantin dǝye medal indiya kǝnasartǝna suro ICF Canoe Sprint World Championships lan, shi dǝwo shiye kungǝna K-2 500 m: 1977 kuru bronze tulur K-2 500 m: 1978  <response>: 1979, 1981; K-4 500 m: 1974, 1978, 1979, 1983. 