In physics, mass is a property of a physical body. It is generally the amount of matter of an object. It is determined by the strength of its mutual gravitational attraction to other bodies, its resistance to being accelerated by a force, and in the theory of relativity gives the mass–energy content of a system. The SI unit of mass is the kilogram (kg).

Manab Adhikar Sangram Samiti (MASS), (Assamese মানৱ অধিকাৰ সংগ্ৰাম সমিতি), is a regional non-profit human rights NGO in Assam. It was founded in 1991 by Parag Kumar Das along with a group of intellectuals and journalists of Assam. The present chairman is Ajit Kumar Bhuyan and its headquarters is at Bamunimoidam, Guwahati.

Massachusetts , officially the Commonwealth of Massachusetts, is a state in the New England region of the Northeastern United States. It is bordered by Rhode Island and Connecticut to the south, New York to the west, Vermont and New Hampshire to the north, and the Atlantic Ocean to the east. Massachusetts is the 7th smallest state by land area, but the 15th most populous and the 3rd most densely populated of the 50 states. With an estimated 6.8 million residents in 2015, it is the most populous of the six New England states and has the nation's sixth highest GDP per capita. The capital of Massachusetts, as well as the state's largest city, is Boston. The state features four separate metropolitan statistical areas: the Boston-Cambridge-Quincy metropolitan area in the east, the Worcester metropolitan area in the center, the Springfield metropolitan area in the west, and the Barnstable metropolitan area in the southeast. Over 80% of Massachusetts' population currently lives in the Greater Boston Combined Statistical Area.