Y I think that it was not a dream!!!

I think since Val's day is comin up Ekta might have wants some J n B romance!!!

I agree.....and more reasons to it not being a dream could be that....

-- the driver's house thing
-- sahil and pia's conversation
-- Pushkar's expressions
-- Karuna and Massi's conversation

my opinions on why i think its not a dream...

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I think it was not a dream because:
1) Why in Pia's dream would the suna suna song play
2) Pia doesnt know that Jai vited for pushkar so that part being a dream doesnt make sense
3) The promo of Kasam se says that Jai ne pia Pia ko bedakhal (basically he thre her out of his life) so how can the promo be related to a dream
4) Masi explaining to Bani how much jai loves her and how much he has cried to make her cry also doesnt seem likely to be a dream as Pia wont dream so much in detail

Why I think it could be a dream:
1) Its an ekta kapoor show and anything is possible :)
2) Too much has happened in a span of half an hour... and no drama or scene was created
3) Pia out on the roads with the beggars was too much to happen in reality ... i mean why would she sit on the road she could go to some hotel or something instead of sitting on the road