Very cheap hosting will always be better than a free one but usually still not good enough. Cheap hosting providers generally don't have stable and reliable servers as well as skilled customer support staff. If somebody offers you unlimited space with unlimited bandwidth for 1 or 1.5$ per month something will usually be wrong. Prices of reliable unlimited hosting plans start from 3$/month.
Since you already have a subscription with your ISP, it will not hurt to ask them whether they offer any web A2 Hosting services. Usually they do and they will give you with some free emails and web space. Make sure that you find out whether they will charge you for it.
Web host servers should keep you informed. They should have tell you they have something for power failure and server protection and that they make regular backups of the server. To be safe you should still keep your own as well. If they have problems they will use their backup, but if you have problems the backup, you want to have your own. The best web hosting services will have 99.9% uptime, 100% is not realistic.
If your business is predominantly online, you cannot afford to have a server go down. This could mean lost clients or the start of a bad reputation. While customers understand an occasional down server, they are far less likely to forgive you if the server is always down.
Customer Service Support is another important factor when selecting the best web hosting site. Not being able to contact a customer service during occurrence of technical problems is the least thing that you would want happen, and sending an email while praying for an instant reply is also not a good option. Identify what type of customer service you prefer. It could be phone support or live chat support. The best web hosting services are those that have 24/7 live chat support as well as 24/7 telephone support. This will give you instant help and support when troubles occur. This will also provide you with the privilege of fixing the problem immediately. Check whether your selected company provides such or not.
In all these situations you need to keep on searching for the firm that will offer quality and cheap web hosting services in India. Remember, it is easy to get read more cheap services quickly but quality work comes with time. Now, with your business you decide, would you like to compromise the quality?