As of now A is just an another person to work with for Shiv. Shiv doesnt know what A is in actual.
A is some one who help good people.
Bacause its first interaction of Shiv with HS, he may get trapped. but have you noticed, A has warned Shiv, But she herself is also alert. She will be alert from HS. She knows that DC can also be turned towards HS. and so she is watchful towards DC also.
She is to judge DC, the same way DC has to judge her.
Though A is not persuing. She has warned him and left. As of now she think that a DC can help himself, but she knows HS well. and hence she would understand HS's move prior to DC.
I think DC will be in HS's trap, and A will help him in freeing from the trap. That is where DC will get to know the actual Aanandi.
As usual A will not take any credit of helping DC. DC wil end up thinking , though he was always rude to her, when ever she warned him against HS, but still she is the one who was not only alert, but heped him as well. That is when first time DC will consider A as some one special. I think so...