New Delhi, Oct. 6 -- India is only now considering a voluntary phase-out of all single-use plastics, but over 60 countries have, since the early 2000s, used a mix of bans and levies to deal with the menace of disposable plastics.

Africa has the largest number of countries that have implemented a complete ban on production and use of plastic bags. Rwanda is the most successful among them, according to the United Nations Environment Programme's Single-use Plastics-A Road to Sustainability report released last year.

"Rwanda is a pioneer in banning single-use plastic bags and is now one of the cleanest nations on earth," the report said.

The Rwandan government banned the manufacturing, use, sale and import of all plastic bags in 2008.