The question of galactic encounters in remote past was examined earlier By expressing the encounter frequency as a function of redshift it was deduced that glactic encounters might have played important role of cosmological significance only in early phases of evolution of the universe. The effects of encounter on individual stars are examined and it is also shown that the encounters in the wake of strong magnetic fields in the early dense phase could release energy comparable with that observed in QUASARS and radio galaxies. The effect of the encounters on the physical state of interstellar and the intergalactic matter is also discussed.