hello rajesh kumar,

yes, there are many b.tech courses in engineering are available.there are some institutes offering part time courses.some of them are,

• VELS institute of science, tech and advanced studies
• dr.mgr educational educational and research institute
• alagappa university
• MIT 
• Anna university 

to know more,please refer the official website of these institutions.

all the best!

I Hope this information will be useful to you.

if you need additional information,let us know to help you.

Thank you!!!:)