Private renting allowed???

Can any one help on this?
We have got a rented house at Bin omran from a private keralite guy(who does not have any real estate company and got this house from another one guy who received rental authorization from owner. Both of them dont have govt. license). Though he is very good and clean hands with tenant. But now the contract is over and the owner does not like to renew the contract with that guy/his friend.He wants to make direct contract with tenant like me. The owner is asking higher than we are paying to that private guy. I dont know the law about this. Normally are these private guys allowed to rent with/without written permission from owner??? Or the expatriate can give written permission to a third man to rent??The owner has given the permission to one guy and he gave to the second guy who has rented to us.The owner says the second guy is unknown. Can i go to the court against this becoz owner wants lot of money and behaving in radiculous manner.
I think that it is the fault of the third guy who rented you this from the permission of the other guy. This guy doesn't have the real contract from the owner, who knows what is in the contract? coz most of the contract states there will be an increase of 5% or something.
"There's nothing we can do to change the past, if it teaches you a lesson profit from it then, forget it."
Well the thing is, they are suppose to give you a month's notice to empty the
house and not do something this stupid. Secondly, if he is asking for more than
10% raise in the rent, you can go to the court, these matters are dealt with
very fast. Last but not least, it is allrite to rent the house from a person who
is given the authority from the owner to rent it out. But then its the indian
guy's responsibility to deal with this matter with the owner.
It's always the small things that make big differences.
subletting property without the property owner knowledge / permission are illegal.
"."
You can if the owner lets you do that explicitly.