I guess ab the story should go with Shivaay falling hopelessly/ helplessly in love with Anika.. who doesnt have( and NEED) a last name or probably is "nazaayaz". Per dil kya kare
Plus the family discovering that Roop, his bhua, who belong to same khandaan/ khoon/ Lineage is super evil and has been scheming against them.. in short gayatri's accomplice.