Need to renew my two wheeler insurance

I need to renew my two wheeler insurance, if I shift to another insurer do I lose my NCB?

No, you do not lose your NCB (No Claims Bonus). You can carry it forward to the new company. Not only that, you will also be entitled to the NCB discount on your two wheeler insurance. I recently shifted to Liberty Videocon; my NCB was carried forward.
www.libertyvideocon.com/products/two-wheeler-insurance (http://www.libertyvideocon.com/products/two-wheeler-insurance)