Complex sentence: Soumita Saha completed her Secondary Schooling from St John's Diocesan Girl's H.S. School, Calcutta Then was admitted to Maha Devi Birls Girls'.
Split into simpler sentences: Soumita Saha completed her Secondary Schooling from St John's Diocesan Girl's H.S. School, Calcutta. Then she was admitted to Maha Devi Birls Girls'.