You can apply passports online in Kerala!
Now passports can be applied online in Kerala! After applying online, the application print out must be submitted to a dedicated online counter at the passport office. So this can be used as a short cut for bypassing queues (like the credit card queues at the railway stations) :)
The new online registration service should reduce the rush at the passport office (In trivandrum, passport office is like a market - too many people, too little space).
But it appears there are some start up problems with the service. The registration site https://passport.gov.in/ seems to be having load problems and is slow.