A Tapasvi dies. Unnoticed – S GurumurthyHe built the largest trade union in India, the Bharatiya Mazdoor Sangh. Formed in 1955 it over took INTUC, the largest trade union, in just three decades. In 1989, strength of BMS was 31 lacs plus. That was more than the combined strength of CITU and AITUC,…