the incident might have happened like this.
child aalekh must be playing and suddenly he landed up in his granfathers room. there he saw his dadaji dead on his chair [as they most of time shw the past] to this he might have got panic and started running. he might have thought tht the members of the house will put the blame on him for killing his dadaji and will hand him to police. and when he was running to save himself he fell from the stairs thus losing his memory till now.
though this is just a vague prediction and i expect even more of thriller and suspense to be out, few more questions like why is aalekh afraid of red roses and wht is the connection of all this with vasu still remains to be answered.
ur comments?