dear sir is there any course which is online offered by this institute
Since you have tagged Indian Institute of Technology, Madras, thus I'll be answering in this context. So, the answer is yes, IIT Madras offers a Bachelor of Science degree in Data Science and Programming, which is completely online. You'll be called to the campus around two times an year and you'll get to experience the actual college life of Indian Institute of Technology Madras.
The fees is also quite nominal, which is around 2.42 lakh for the total duration, and you'll be taught by the best faculty of the country.
Hope I have answered your question. All the best!