As details of David Headley’s visits to India before the 26/11 attacks come forth, India has changed its long-term tourist visa regulations.
As per the changes, tourists with long-term visas would “no longer be allowed to enter India within two months of their last departure from India if their last visit was longer than ninety days or if they have stayed longer than 180 days during the past year.”
More information is available at the travel advisory here.