That's nice symbolism U picked up there :-)
I feel the laal/red rang/color which he puts on Zoya is symbolic of his love which will never be erased from her heart. The color of his love has fallen all over her.
But at the same time I think it indicates blood or fire which means she us going to colored in blood soon too with Razia in the background that seems likely.
I also feel like his love for her might be the reason for her being put in danger. (maybe tannu tries to kill her?)
May be zoya investigating the case n razia came to know that this girl is trying to find the hidden secrets ...
So she said tanu to kill her ...
But i think firstly tanu will not .but later will try to kill her ...
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