appu herself confessed of being a vishkanya and what is her purpose.vardaan died while trying to save appu and she was killed by black shadow and vardaan made appu promised to look after malay.thats why she is in mittal mansion.mandira is actually malays mother sister which was murdered by the black shadow and now the black shadow is posing as mandira to get her avenge from appu.kalpana is been kidnapped by mandira so that appu fullfils her wish by giving her a baby through malay.she wants malay to sleep with apu.