Which of the following was the first to promote and bring forward the primary health care concept in true sense?

The Bhore committee in 1946 gave the concept of Primary Health Centre as basic health unit. But in the view of limited resources, the committee recommendations could not implemented even after the lapse of 60 years. The deceleration of Alma ata conference in 1978 setting the goal of health for all by 2000 AD, has ushered as a new philosophy of equity, and a new approach - the primary health care approach. The national health plan (1983) proposed the reorganization of PHC for more effective coverage. As on 22370 PHC has been established in the country.