i think it is possible that the lady in Rudra's dream wearing the red sari is shakuntala devi who died after Rudra got married. When she died, she was also wearing a very similar red sari. Also, shakuntala devi was asking for forgiveness from that other lady who was drawing pictures at the end of the episode (can't remember her name...). So maybe shakuntala devi was tricked into killing Rudra in her previous life by the man who was walking. Then shakuntala devi realised her mistake and had been asking for forgiveness ever since....what do u guys think?