Civil Engineering

Sorry, Commerce graduates are not eligible to pursue Master's programs in Civil Engineering. The BE /B.Tech in Civil Engineering and GATE exam are the minimum requirement for pursuing the ME/M.Tech in Civil Engineering.

Yes, you can do Diploma in civil engineering from distance learning method in Jodhpur national university.
Good luck.

Please check the link predictor tool for better results
https://www.shiksha.com/b-tech/resources/wbjee-college-predictor
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There is no age limit for GATE exam and apply for BE civil engineering.
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You can check the link predictor for better results
https://www.shiksha.com/b-tech/resources/wbjee-college-predictor
Good luck.

Yes, you can join B.Tech in G. B. Pant University of Agriculture and Technology. Good luck.

No, you cannot get direct 2nd year admission in B.Com on the basis of Diploma in civil engineering. The minimum eligibility criteria for B.Com is students must have successfully passed class 12th HSC/10+2 (or equivalent Level of Examination) from any recognized Board. Numerous universities prefer candidates with 50% marks for the admission process.

Most of the college done the 2nd year Diploma admission through the Centralized admission process (CAP) conducted by DTE Maharashtra. Hence please apply through DTE Maharashtra website as under. While for Bangalore you may seeks admission in following colleges.
1. Brindavan College of Engineering
2. Acharya Patashala Polytechnic
3. Alpha College of Engineering
4. B.E. S Institute of Technology (Polytechnic)
5. Baldwin Polytechnic.

If you are asking about Gateway Academy Kaloor, Kochi, then this was formed to deliver quality education to students appearing for various competitive exams. The quality of training that it impart of its aspirants has helped the students to achieve high success in different competition examinations like GATE, PSUs, IES, UGC NET, JTO, DRDO, SSC etc.
Hence, Gateway Academy does not offers part time diploma in civil engineering course.