"Till date he hasn't undergone any treatment. He is very healthy and there are no symptoms. Can you please help me know the status of his health and what should be done at this point?"
For HBeAg- with high DNA and elevated ALT, your husband may need treatment for life. The liver is a strong organ, the virus does damage slowly. That's why your husband appears very healthy (and he may well be that at this point) and without symptoms. But his liver is being attacked by the HepB virus. Without treatment to control disease progression, fibrosis, then cirrhosis of the liver may occur soon rather than later. Your husband should press his doctor to start treatment. Good luck. And please remember, as it was pointed out by others, there are no doctors here. So be sure to talk to your own doctors.
cajim is correct. Additionally, it should be noted that there are no doctors currently posting on this forum.
Your hunsband's status: HBsAg(+) HBeAg (-) HBeAB(+) ALT 66 DNA 49100000, by 2007 guideline fits the status for treatment. Please consult his doctor.