Where can you find best and reasonable web hosting service provider?

VPS.ag With speed and reliability in mind, they aim to provide high quality cloud solutions. Using powerful and energy efficient equipment, they can provide cost-effective VPS's without any performance degradation.
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There are several hosting providers in the industry and offering different services.Well, It all depends upon your hosting requirements. If you're looking for a high uptime and 24/7 support then Host.co.in has the vision of providing best in class yet affordable web hosting services and technologies to our customers in India and overseas.

services include:
Managed Dedicated Server Hosting, VPS Hosting, Cloud Servers, Shared Web Hosting, Semi-Dedicated Servers, Reseller Web Hosting, cPanel PHP Hosting, ASP Hosting and domain name registrations.
For more Information visit: https://www.host.co.in

As per my experience you can find best web hosting service at
http://www.tukihost.com

Choosing the best hosting provider depends upon the requirements that you want to suffice. I would suggest you go with the reviews that the particular company's customers have dropped on high end review sites like Trustpilot.

If you are asking a recommendation, I have my website hosted with eUKHOST Ltd. What makes me propose their name is the excellent customer service, great hosting experience and the best of all - No Hidden Charges.
https://www.eukhost.com/dedicated-servers/