Complex sentence: He was Deputy Inspector-General of Police, Villuppuram Range, Joint Commissioner of Police, Chennai City and also he was DIG of Police, Tiruchirapalli before becoming Chief Vigilance Officer, TNPL, at Karur.
Split into simpler sentences: He was Deputy Inspector-General of Police, Villuppuram Range, Joint Commissioner of Police, Chennai City. Later, he was DIG of Police, Tiruchirapalli before becoming Chief Vigilance Officer, TNPL, at Karur.