Although India has introduced the world to Kama Sutra, it looks like the country is not open to the delicate subject of sex on the Internet.
Several Internet companies have secretly introduced filters to prevent Indian users from accessing sexual content, reports the Guardian.
Earlier this month, the Yahoo search engine and Flickr photo-sharing site (owned by Yahoo) altered their sites to prevent users in India from switching off the safe-search facility.
The block also applies to users in Singapore, Hong Kong and Korea.
Microsoft has also banned Indian users of its Bing search engine from searching for sexual content.
Users who do try to search for sexual material receive a notice informing them that "your country or region requires a strict Bing SafeSearch setting, which filters out results that might return adult content".
The crack down is said to be in response to recent changes to India's Information Technology Act of 2000, which bans the publication of pornographic material.