Complex sentence: Kapoor had married her long term boyfriend Ameet Bhatia who she had dating in 2000 till 2003 and then she had engagement on 14th January 2002 and then the wedding took place on 14th January 2003.
Split into simpler sentences: Kapoor had married her long term boyfriend Ameet Bhatia who she has had began dating in 2000 till 2003. In 2002 she had an engagement him on 14th January 2002 and then the wedding took place on 14th January 2003.