The Full Form of JKS is Jai Shree Krishna.

Jai Shri Krishna (or Jai Shree Krishna) is a Hindi expression, translating as “Glory to Krishna” or “Victory to Krishna”, a major deity in Hinduism. The glory expression is believed to have hailed from the Mahajans and Vaishnavites. The expression is said to greet another person wishing them full of success and has also been used as a greeting accompanied with namaste or bowing head, specially while greeting elder ones.

Jai Shri Krishna expression is widely used expression to greet people during the Hindu festival of Janmashtmi, which celebrates the birth of Krishna. In present day, Jai Shri Krishna is widely used among the Jain community, Gujataris and Rajasthanis, based in and out of India