Need Advice for millet cultivation


I am from chittoor district of Andhra Pradesh , We have Land which we call (Sudhha nela), frompast 20 years my parents are being on chemical farming, now this year i would like to go for organic Millet Farming, i have learnt about ZBNF and NCOF waste decomposer , I would like to know how to prepare the land for the millet farming , Please suggest me . I would be great full for your valuable advice