Thank u, but I also want to know only IIT roorkee have course of mca. If tell me, it is so helpful for me.

Yes it has. Check here the courses: https://www.iitr.ac.in/admissions/pages/Programmes+Courses_of_Study.html

Thanks a lot mam, I have searched about syllabus of IIT jam syllabus for mca but as I am b. SC. Student I can only handle mathematics easily. So, I think I should start preparation for nits. In their syllabus math, general amplitude and reasoning, English, awareness about computer. For It, I think I should buy a book of previous exam and it can give me an idea about its level and pattern.
And I also want for how I start target to complete my syllabus with revision.
And also if I pass out from nit for mca, then which government job are there specific for mca course.