Complex sentence: He married his co-star Geetanjali TikekarKharbanda, from Kasauti Zindagi Ki, whom he had dated for two and a half years before marriage.
Split into simpler sentences: He married his co-star Geetanjali TikekarKharbanda, from Kasauti Zindagi Ki. They dated each other 2 and a half years before marriage.