Handshake.org is trying to solve this problem for good by decentralizing DNS at the root TLD level. I'd look into this if you want to make sure no one takes down your domain ever again.
Disclosure: we're building a registrar on top of Handshake. We can also help you claim "zoho" on Handshake for free if you're interested.
Disclosure: we're building a registrar on top of Handshake. We can also help you claim "zoho" on Handshake for free if you're interested.