Complex sentence: During Roopa's pregnancy her younger sister Gunja (Sadhana Singh) comes to live with her and falls in love with Omkar's younger brother Chandan (Sachin).
Split into simpler sentences: During Roopa's pregnancy, her younger sister Gunja (Sadhana Singh) comes to live with her. While there, she falls in love with Omkar's younger brother Chandan (Sachin).