BCA

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.

BCA gives a student with a solid platform to further his career in the field of technology but it is strongly recommended that a student should opt for MCA to further his prospects in this competitive world. BCA is a good course but it is simply a Bachelors level degree and not much importance is given by both private and government organizations especially when compared to a B.Tech course.
IT and Computer Engineers who have completed their B.Tech program are not only in great demand in IT industries but in sectors like banks, airlines, and manufacturing industry. India is the main outsourcing hub for international projects from the US or the UK. B.Tech students with good academic records may also get hired as research analysts.