Rabi shankar is calling from Rourkela, dist Sundergarh, Odisha and talking with Ram babu,a naturopathist who is telling that how pregnant women can give birth to healthy baby and know the exact date of delivery by calculating the conceiving date and using folic acid tablets.He campaigns for making people aware about natural birth practices. He says Govt should distribute free folic acid tablets to pregnant women and they should take it regularly.Ram babu@ 9938794504