Prasad said although porn is legal in other countries, it needs to be viewed in the "context of Indian culture and moral obligation towards society".
The department of telecom had said large-scale blocking of websites could slow the Internet down, unless services providers upgrade their infrastructure.
"The problem is that you are veering down a slippery ground if you try to do this, installing filters and all," said Prasanth Sugathan, counsel for the Software Freedom Law Centre. Such blocks have been ineffective in countries such as the UK. However, in China, where the ban on online pornography is strictly enforced,it is another story, as that country has people dedicated to monitoring content, he said.