Hi @dhavalveera,
I'd recommend that you choose a hosting company that does provide certificates. There are many of them and you can take this into account when choosing one.
Obtaining and installing Let's Encrypt certificates outside of your web server environment is cumbersome and risky. Part of the design of Let's Encrypt is that the certificate process should be automated in order to ensure that renewal happens on a proper schedule and in order to allow shorter certificate lifetimes without inconveniencing users. Currently Let's Encrypt certificates last for only 90 days, and there's a possibility that they'll be given a considerably shorter lifetime in the future.
A nearly complete list of application software that can request Let's Encrypt certificates is found at
but, again, you'll probably not have a very positive experience if you use this sort of software other than directly on your web server.