The Indian Constitution is the spirit behind every Indian Law. Article 39 of the Constitution, enshrined in the Directive Principles of State Policy, aims to promote welfare of every citizen in the country. Some of the consumer laws are also rooted in the fundamental rights, which guarantee right to life, equality, etc. Some general Laws / Rules concerning fair distribution of goods / services to the consumers are listed out below

General Laws / Code / Rules:

Indian Constitution 

Consumer Protection Act 1986 (amended-2002)

Consumer Protection Rules 1987 

Tamil Nadu Consumer Protection Rules, 1988 

Essential Commodities Act, 1955 

The Sale of Goods Act, 1930 

Prevention of Black Marketing & Maintenance of supplies of Essential  Commodities Act, 1980

 Standards of Weights & Measures Act, 1975 

The Packaged Commodities Regulation Order, 1975 

The Protection of Human Rights Act, 1993 

The Protection of Civil Rights Act, 1955 

The Water (Prevention and Control of Pollution) Act, 1974 

The Monopolies & Restrictive Trade Practices Act, 1969  

Prevention of Food Adulteration Act, 1954 

Drugs and Magic Remedies (Objectionable Advertisement) Act, 1954 

Infant Milk Substitutes, Feeding bottles and infant foods (regulation  of production, supply and distribution) Act, 1992

Bureau of Indian Standards Act, 1986 

Each of the above laws are enforceable through Courts of Law / Authorities at various levels. Consumers must be aware of provisions of law and therefore the caveat emptor applies "Consumer beware!"