Weed density and weed dry matter reduced significantly due to different weed control measures. Cane yield increased significantly with all the measures over weedy check and was highest under weed-free conditions though it was at par with manual hoeing 20, 40, 60 DAP and at harvest of intercrops. Cowpea was most effective in smothering weeds followed by greengram and blackgram. Cowpea, blackgram and greengram reduced cane yield by 5.2, 10.4 and 8.4%, respectively. Sugarcane+cowpea gave highest mean cane equivalent yield of 108.4 t ha·1 with net return of Rs. 68684 and B : C ratio of 2.24 as against 77 t ha·l, Rs. 43264 and 1.44 with sole sugarcane. CEY and net return also followed the same trend. Atrazine greatly hampered the emergence of the intercrops.