They show shubh sneeking off in d night and aastha pertends 2 sleep ,then she follows him.as she walks out they show a women dressed in red sari but her face is covered with her hair.
mera shak yakeen mein badal giya hai ,koi raaz zaroor hai jo shubh mujh se chupa raha hai.
they show aastha trying 2 open a door in d dark when someone flashes d torch on 2 her.
by d looks of it ,i think its shubh's grandad.