Net Neutrality is the Internet’s guiding principle: It preserves our right to communicate freely online .Net Neutrality means an Internet that enables and protects free speech. It means that Internet service providers should provide us with open networks — and should not block or discriminate against any applications or content that ride over those networks. Without Net Neutrality, cable and phone companies could carve the Internet into fast and slow lanes. An ISP could slow down its competitors' content or block political opinions it disagreed with. ISPs could charge extra fees to the few content companies that could afford to pay for preferential treatment — relegating everyone else to a slower tier of service. This would destroy the open Internet.
European Union- The 2002 regulatory framework for electronic communications networks and services in the European Union consisted of five directives, which are referred to as "the Framework Directive and the Specific Directives": the current EU rules allow operators to offer different services to different customers groups, but not allow those who are in a dominant position to discriminate in an anti-competitive manner between customers in similar circumstances"
Israel-
In 2011, Israel's parliament passed a law requiring net neutrality in mobile broadband. The law contains an exception for reasonable network management, and is vague on a number of issues such as data caps, tiered pricing, paid prioritization and paid peering.
North America- US FCC policy (2010-present) which banned cable television and telephone service providers from preventing access to competitors or certain web sites such as Netflix. The rules also include a more limited set of obligations for wireless providers. The rules would not keep ISPs from charging more for faster access. 
Russian Federation- Network operators (ISPs) can now legally limit individual actions of the subscriber's network activity. The subscriber is obliged to take actions to protect the subscriber terminal from the impact of malicious software and to prevent the spread of spam and malicious software to its subscriber terminal.
South America- The law, published on 26 August 2010, added three articles to the General Law of Telecommunications, forbidding ISPs from arbitrarily blocking, interfering with, discriminating, hindering or restricting an Internet user's right to use, send, receive or offer any legal content, application, service or any other type of legal activity or use through the Internet. 
Chile- Chile became the first country to implement Net Neutrality way back in 2010. The legislation prohibits the ISPs from meddling with the internet both during content delivery or consumption in any form. 
Brazil- mid-2014, Brazil passed a monumental ‘Internet Bill of Rights’ which basically encompasses Net Neutrality and security of Brazilian users of the internet. The law bans telecom companies from charging differentially or for striking deals with different content players for preferential or fast lane data channels. 
             Currently, there are no laws in India which governs Net Neutrality. 
 This clearly points out the need to have in place regulations which can keep in check the telecom operators and prevent them from carrying out any kind of exploitation. What we need is a strong Regulatory body which is just and impartial and which works for the betterment of the industry and all stakeholders including the consumers instead of acting as an agent of telcos.

Dr. R.S. sandhu
punjab