There are plenty of free resources that are available to learn programming languages. Some of the best websites are- GitHub, CodeAcademy, Khan Academy, Tree House, Coursera etc. Also you can practice programming on various sites like- Codechef, Sololearn, Code Avengers etc.
There are lots of education sites such as Swayam, Udacity etc., but you may have to pay to get certificate. Internshala also offers summer and winter trainings at a very low cost.