visa expires and still in India, what happens?

I have heard various different things about the consequences of overstaying your visa...daily fine, not being allowed to leave the country, difficulties entering the country again etc. There is alot of hearsay, does anyone know what will happen if I stay here beyond my visa by a month?

Also, I am trying to find out how to get from India to Sri Lanka to get a new visa, is it possible by ferry or do i have to fly? (sorry this in the wrong section but the two are linked in this case) Am a few hours bus ride from Kochi at the moment.

There is a ferry marked as going between Kochi and Sri Lanka but not sure if this is still running.

Thanks

This issue had been discussed threadbare in the past. Remember overstaying is an offence viewed seriously by the authorities so dont get in to the hasseles, consequences can be very bad indeed.

There is no ferry from India to SL.