Complex sentence: Later on when retired Indrajeet arranges for the marriage of his adopted daughter Neelam to marry Kumar Gaurav only to have the couple killed by the brother of Indrajeet's ex-girlfriend.
Split into simpler sentences: Later on when retired Indrajeet arranges for the marriage of his adopted daughter (Neelam) to marry (Kumar Gaurav). Tragically the couple are killed by the brother of Indrajeet's ex-girlfriend.