Complex sentence: After completing his degree he read for the Bar and was called by Gray's Inn to become a Barrister, after returning to Ceylon he took his oaths as an Advocate of the Supreme Court of Ceylon.
Split into simpler sentences: After completing his degree, he read for the Bar and was called by Gray's Inn to become a Barrister. After returning to Ceylon, he took his oaths as an Advocate of the Supreme Court of Ceylon.