THREE elementary forces dominate the physical universe. These are as following:
(1) ATTRACTION (Gravitation) (2) REPULSION (3) RETRACTION

Only these three elementary forces exist. There is no fourth force exist. Out of these three forces, Sir. Isaac Newton in 17th Century (1685) discovered the force of ATTRACTION that is GRAVITATION. But, ancient Indian Astronomers knew about this force of attraction/gravitation even in 5th Century B.C.

Other two forces REPULSION (that is Stellar Universal Repulsion Force or STREPULSION FORCE) and UNIVERSAL RETRACTION FORCE are discovered by us and announced worldwide by press media on 6th February 1980.

Dr. Navinchandra K. Shah
Prof. Padmavati P. Jain