A study involving genetic introgression through inter-specific cross followed by pedigree method of selection, of these two species was initiated to improve fiber strength of G. hirsutum cotton. Finally 221 F11 lines were evaluated at ARS, Dharwad Farm, during 2009-10 in Augmented Design-II. Observations on fiber traits, seed cotton yield and ginning out turn were recorded and analyzed using Windostat version 8.5. Seed cotton yield ranged from 137 to 3608 kg/ha with 17.53 per cent GCV, 92 per cent heritability and 34.67 per cent genetic advance as per cent mean. Ginning out turn ranged from 22.88 to 40.83 per cent with 99 per cent heritability, 23.45 per cent GCV and 48.13 per cent genetic advance as per cent mean. Fiber strength was in the range of 15.43 to 28.68 g/tex with 26.61 per cent GCV, 59 per cent heritability and 41.95 per cent genetic advance as per cent mean. The value for 2.5 % span length ranged from 24.44 to 36.59 mm with 20.10 per cent GCV, 83 per cent heritability and 196.07 per cent genetic advance as per cent mean. Genotypes HBS-1, 19, 20, 25,30, 31, 115, 130, 133, 134, 137, 144, 146, 157, 176 and 183 recorded 50 per cent greater yield than Sahana (1214 kg/ha). Lines HBS-6, 23, 41, 70, 88, 95, 114, 128, 159, 161, 171, 172, 173 and 181 recorded significantly superior fibre strength than MCU-5 (20 g/tex). Similarly genotypes HBS-23, 114, 115 and 232 recorded significantly superior seed cotton yield than Sahana and fibre strength than MCU-5. These selections recorded 54 to 197 per cent yield increase over Sahana. It indicates the possibility of improvement in both seed cotton yield and fibre strength of G. hirsutum cotton through inter-specific hybridization in tetraploid cotton.