BCA

Yes, NIOS is accepted for BCA in GGDSD College, Chandigarh. If you passed 12th from NIOS with 50% marks and had Maths in 10th or 12th, you can apply. Admission is just on merit, no entrance exam needed.

Yes you can pursue a BCA at IPU University even if you did not have computer Science or math in class 12 provided you have studied one of the specified subject related to computer Science or alternatively have completed a 3 year Diploma in Engineering with a minimum of 50% aggregate

Look at Dr. Bhimrao Ambedkar University (DBRAU)–affiliated colleges where fees are moderate: Raja Balwant Singh College, St. John's College, Agra College, Anand Engineering College (BCA wing), MPS Group of Institutions. Government? aided colleges are usually the most economical (often under forty thousand rupees a year). Verify NAAC grade, labs (Linux, DBMS, networking), compulsory internships, and placement cells—they separate the merely cheap from the truly valuable for money.