The fundamental of cell–cell communication is QS which enables the community of cells to work in tandem to adapt to their environment by expressing traits like bioluminescence, virulence factor expression, sporulation, biofilm formation and mating. In addition, QS is required to activate genes required for induction of virulence. Research over past couple of decades have shown that resistance to antibiotics is also attributed by QS and organisms like P. aeruginosa develop biofilm, in which they harbour as a community is much more resistant to control with antimicrobial agents than them surviving singly. With all these clues, it directs QS help microbial community to become immune against human efforts for their control and therefore, any effort to block the microbial QS becomes a promising modus operandi for control of microbes [20]. Any tactic that blocks QS is coined with the term ‘anti-QS strategies’ and molecules causing this are called QSI [5].