Facebook will launch transparency tools for electoral ads in India next month to help prevent foreign interference and make political and issue advertising on its platform more transparent. Advertisers will need to be authorised to purchase political ads and the social networking giant will give people more information about ads related to politics and issues.

"We will create a publicly searchable library of these ads for up to seven years. The library will include information on the range of the ads' budget, number of people they reached and demographics of who saw the ad, including age, gender and location," Samidh Chakrabarti, Director of Product Management, Civic Engagement at Facebook, said in a blog post on Monday.