I know people who have applied for and paid for 6 month visa's but have been given 3 months Split. Not sure about the departure date,where i apply i don't have to put it on the form so not sure about the UK.
Chilly by next season it will be down to 90 days,that's just my personal opinion based on the way things are going.
As far as "laws" and "warnings" and "official statements" are concerned,come on you know as well as i do this is India!!
I think your in denial. They are shooting themselves in the foot,they will never ever get what they want "high end tourists" look at the place!!
Thailand is buzzing with tourists from all over Asia..Japan,China ect, Goa will never have that.
I'm sure if i was in the UK planning my winters holiday i would be a bit concerned and worried knowing to well that the Indian government could change their mind on a whim.
Next season will show the damage that has been done.