Can I apply for renewal of my passport because my photo has specs,?
Specs or no specs in ones passport photo is no problem for the passport, nor the immigration authorities, unless you feel unnatural yourself with or without them. Thats why we require to take photos of ourselves as we look normal. That is, some of us may wear glasses throughout the day because of necessity. If so, we better have photographs with glasses on. No harm in it. Secondly, as you say, your passport is valid for another 5 years hence, you better wait till it becomes due for renewal.