Complex sentence: In the practice, potential bridegrooms usually from well-off families, who have either cleared their IAS exams, have a medical or engineering degree or have secured government job, are targeted by families who can't afford big dowries.
Split into simpler sentences: In the practice, potential bridegrooms, usually from well-off families are targeted. Young men who have either cleared their IAS exams, have a medical or engineering degree or have secured a government job, are targeted by families who can't afford big dowries.