Partnership Firm, governed by the Indian Partnership Act, 1932, is a business structure where two or more than two persons come together to form an entity and to carry on the business collectively. Partnership Firm is relatively easy to start and are most prevalent for small and medium size businesses.
The Shops and Establishments Act applies nationwide to the regulations of conditions of work and employment in shops and commercial establishments for public entertainment or amusement.
An NGO is a non-government organization with a charitable objective, for the betterment of the society in general. It can be started as a Trust, a Society or a Non-Profit Company [Section 8 Company], depending on the activity you wish to undertake.