There are hundreds of cable modem service provider cable operators but before using one of them you need to no how is their service and what are their plans, consider situation where you are in Dillema and you are not able to select any operator so in this situation what you need to do is just Google about the company and compare their plans and prices.
The main part is you should no no no no you must compare the after Sales Service how is the service like I use MTNL Broadband their service is worse when it stops working it takes around a weeks to repair your internet