Abstract: Silkworm larvae feeding on mulberry leaves supplemented with the best optimum dosed solution (0.1% P+ 0.3% K + 0.1 % Ca + 0.2 % N and 0.15 % Mn) proved better in terms of increased food consumption, co-efficient of utilization, larval weight, length and silk yield. It is concluded from the present study, the minerals supplementation had a positive influence not only on the yield components but the life processes too. Thus it is evident from the experimental verification references that treatment T11 emerged as the best one, where mulberry leaves were treated with 0.1 per cent P + 0.1 per cent Ca + 0.2 per cent N + 0.3 per cent K & 0.15 Mn leading to develop a stronger lot of silkworm larvae and silk yield as well.