Complex sentence: Rajesh Agarwal marries Geeta, daughter of his school teacher Master Dinanath, without telling his mother as he is afraid that his dowry seeking mother would oppose the marriage.
Split into simpler sentences: Rajesh Agarwal marries with Geeta, daughter of his school teacher Master Dinanath. Rajesh marries with Geeta without telling his mother as he was afraid that his dowry seeking mother would oppose the marriage.