More than 50,000 birds died in Maharashtra state. The state's animal husbandry minister confirms news on Saturday (Source: local television news).
However, there is no report of human infections so far. Maharashtra is my state and it is, India's richest and most industrialized state, has 100+ of poultry farms.
According to wikipedia H5N1 is an avian influenza virus subtype. The H5N1 flu is what is commonly meant when talking of "bird flu" or "avian influenza". It is a viral disease that causes illness in many species including humans and is a pandemic threat.
See also TOI news