Air India website is unable to book tickets to any city in US other than its five destinations (SFO,ORD,NYC,IAD and EWR.) Don't know what is happening to the understanding with United Airlines as both are Star Alliance members. And United Airlines which used to issue tickets to many Indian cities with Air India segments earlier has totally stopped showing Air India in their bookings.
It is high time Air India top management takes up the matter with United Air lines and resolve the issue immediately.