Hello sir,
1.Selection of site with natural ventilation from both the sides.
2.Structure:-which cost from Rs.19-36/sq feet.
3.Irrigation facility:-
4.Cages for birds,feeds and chicks.
5.Capital:-all nationalized banks provide loan on submission of detailed project report and department of veternary will provide subsidy also. for project report you may visit consultancy page of this website and also visit NABARD website
6.If you are new to business get trained for training visit nearest KVK,veternary department also visit NDRI website.
7.these days many companies like life line feeds, Venkob chiken,Suguna chiken will make contract farming they will provide inputs and they buy your chiken back on contract price.