Yes, popular PhD entrance exams include UGC NET, GATE, JAM, and NPAT. These tests assess your subject knowledge and research aptitude.
No, online and distance PhD degrees are not recognized by the UGC or AICTE. Only full-time or part-time programs from accredited institutions are valid.
PhD programs typically last between 3 to 6 years in India, depending on the institute, research topic, and type of program pursued.