I want to get a simple knowledge about 'Ruby on rails' based create and developed a small application or website. Kindly guide me.

Hi , You can enroll yourself in some certification programs based on ruby which will help you in your development of an app or website. Please refer the link below for the institutes : https://it.shiksha.com/ror-ruby-on-rails-certification-training-institutes-in-delhi-ncr-categorypage-10-105-68-0