Complex sentence: He started his career in 1964 as a Yoga Research Assistant by joining Lakshmibai National University of Physical Education, Gwalior later he moved to India International Center Library in the year 1964 and served there as a the head and chief librarian for over 35 years.
Split into simpler sentences: He started his career in 1964 as a Yoga Research Assistant by joining Lakshmibai National University of Physical Education, Gwalior. Later, he moved to India International Center Library in the year 1964 and served there as a the head and chief librarian for over 35 years.