Ph.D Eligibility

Eligibility Of the Ph.D. (Mathematics)
Eligibility Criteria for admission to PhD Mathematics program is a Post Graduate Degree in Mathematics, preferably an M.Sc. degree in Mathematics or Physical Sciences. B.Tech.candidates can also apply.
How to Get Admission in Ph.D. (Mathematics)
Application Process and Selection Criteria
The application process for most of the institutes start in January every year and the classes begins from August. The best way to get a good college for Ph.D. is to sit in CSIR-NET and UGC-NET exams for some of the colleges GATE is also used as prerequisite. For Ex. ISI Kolkata uses GATE score for admission in its Ph.D Maths program. Some institutes also take admission through NBHM Screening test conducted for Ph.D. Scholarships.
Every Entrance Test is followed by an Interview Round which is most critical phase of the admission process. Almost every institute takes this round in which student is placed in front of Five Members expert panel. Where the real mettle is tested.

Surely, you will be able to pursue Ph.D after MCA and admission in BCA through lateral entry won't create any hindrance
Details mentioned below:
The admissions in the Doctor of Philosophy course in Computer Science are available at various colleges and Universities in the nation. Generally, the course is of 2 to 4 years of duration depending on the time taken by the candidates for thesis submission. Available as a full time as well as part-time course, the admissions are conducted on the basis of application shortlisting.
The programs are announced at different times in a year and the best ones are imparted in the IITs, NITs, IIITs, and other reputed institutes that are UGC recognized. It is suggested that the applications should be made after proper examination of the status of the institute such as recognition, the level of courses provided by it, the recognition of the Ph. D. in Computer Science given by it etc.
Ph.D in Computer Science Overview:-
Duration of course: 2 to 4 yearsMinimum Education Qualification: UG, PG or some national level exam such as GATE, JRF etcAvailable as: Full Time and Part Time courseMinimum Stipend for Reputed colleges: 12000 +Collaboration with colleges abroad: Allowed at some reputed colleges
Notable Colleges for the Course:
IITsNITsIIITsDTUAmity UniversityAlmost all the colleges and universities in the nation
Ph.D in Computer Science is one of the most intensive doctoral degree programmes. Technical to the core this involves the understanding of various systems and the application of the same through experimentation. Ph.D programmes in programming language and computer security are the most preferred and also exciting stream of research.

You have completed post graduation degree in advance construction management so you are eligible for Ph.D course but you must have a valid UGC NET score.
NET stands for National Eligibility Test. The educational qualification required for NET exam is masters degree from a recognized university with above 55% marks. 5% relaxation is given for SC/ST category candidates. Final year student are also eligible for NET exam.
There is no age criteria for NET exam but for JRF posts, your age should be below 28 years.
Some building and construction management courses offer a year out in industry, giving you the chance to develop professional contacts and build on your practical skills. Alternatively, you could apply for a summer placement with relevant building or construction companies.
Make the most of any work placements you do as companies may use them as a way to recruit future employees.