According to Netglobers.com: 'The visa restrictions were introduced to reduce the flow of people into and out of India following terrorist attacks in Mumbai that killed more than 160 people. However, government officials recognized that such measures were negatively impacting the country's tourism industry.'
The only way around this was if you had a travel itinerary that you could show the immigration officials which showed your entire travel plans that included multiple entries to India from, for instance, Nepal or Thailand.
Updated Info - Official Indian government websites concerning the easing of restrictions:
Government of India Press Information Bureau:
Embassy of India, Washington, DC:
Here is the announcement which was posted on the Travisa website for Indian tourist visa applications for US citizens:
Travelers on a Tourist visa were previously required to have a gap of at least 2 months between two separate visits to India. The restriction has now been lifted except for nationals of China, Iran, Pakistan, Iraq, Sudan, Bangladesh, Afghanistan, foreigners of Pakistan and Bangladesh origin and stateless persons.
You can find more information here concerning the new rules on Indian tourist visa: https://indiavisa.travisaoutsourcing.com/homepage
Here's another link from Netglobers.com regarding the easing of the two month wait for tourist visas.