Thanks a ton friend.1. Exact route and distance from Kalyan station / Metro Junction.
From Metro, head towards railway station (via patri pool), don't take the right that goes to station, just continue straight towards Bhiwandi.
It is just before you reach the Kalyan-Nasik highway.
2. Is is a stay village or options are available for visitors to have only meals.
AFAIK, there is no stay option. But check once.
3. How about cleanliness and hygene such as mosquitoes, flies etc.
Hygiene is average. Nothing to highlight in particular.