Low cost manufacturing of quality products remains an essential part of present economy

and technological advances made it possible. Advances and amalgamation of information

technology bring the production systems at newer level. Industry 4.0, factory for future,

smart factory, digital manufacturing, and industrial automation are the new buzz words of

industry stalwarts and academicians. These new technological revolutions bound to change

not only the complete manufacturing scenarios but many other sectors of the society. In this

paper an attempt has been made to capture the essence of Industry 4.0 by redefining it in

simple words, further its complex, disruptive nature and inevitability along with technologies

backing it has been discussed. Its enabling role in manufacturing philosophies like Lean

Manufacturing, and Flexible Manufacturing are also