B.Tech

Hello Balaji,I am sure, you can join B.Tech through correspondence course via Karnataka State Open University. This is of course assuming that you have completed your 12th standard examination and have procured minimum marks mandated by this university. It should normally take you four years to complete the studies but it depends on how much time you are able to spare for studies since you will have to find time from you schedule for study and then appear in examination. The fees of the Open Universities are quite less and much less compared to normal colleges. You will find detailed information once you download the information brochure and application form from the university website.
Best wishes to you.

JB, Graduate Marine Engineer (GME) eligibility criteria are as under.
1. Academic Qualification :Graduation in BE /B TECH (Mechanical Engineering), BE / B TECH (Mechanical & Automation Engineering), Naval Architecture with minimum marks of 55% aggregate in degree.
AND
Minimum 50% marks in English subject at 10th or 12th
or in Degree Exam conducted by a recognized board or
University.
2. Age Limit as on course commencement date should not more than 28 years (as on course commencement date)
3. Marital Status :- Unmarried
4. No. of seats per batch :- 40
7. Last date of registration :- 31 Dec 2018
The course fee is about Rs 541028/.
Because you are meeting the eligibility criteria for GME course, Hence you are eligible.

Civil engineering is the oldest discipline amongst all branches of engineering, the range and application of civil engineering is the broadest and the most visible. In fact, the entire infrastructural framework of a modern nation is the creation of civil engineers. The credit of building mighty power plants, dams, airports, sea ports, highways, inland waterways and industrial plants goes to civil engineers. These professionals are also engaged in building an unending array of urban structures such as commercial complexes, skyscrapers, tunnels, bridges, roads, urban rapid transport systems, sports stadia and so on. In my opinion you have to starts your preparations for GATE-2020 just now. This exam can open the numbar of opportunities in government and government PSUs sectors. Further you can participate in UPSE exams like IES and civil services. IRCON, RITES, DFCCI etc. Are the government PSUs recruits civil engineers for their various projects works through the GATE score in India and abroad.
Good day.