The story... Some help

I just started watching the serial, can someone tell me what is the story of each lady... please. it seems really interesting.

Devyani - she's the mother of Aditya and Gaurav. She's a very strong person who like to keep up a facade of perfect marriage and perfect family. He husband is an SSP in the police, who puts up front of being honourable but is a huge womanizer and she knows it quite well.