That is y I said m not too sure...but we can't rule out the possibility coz we don't know y jhanvi started drinking...Tej is an insensitive man...I don't see y he wouldn't keep his illegitimate child in the house...he is a man who deliberately holds his mistress's hand infront of his wife...Rudra being Shvetlana's son ads to the drama and makes him a contender in the race for the throne as Shvetlana would want his son to become the heir...so we really can't rule out this possibility...and Gul is very much capable of showing this...as I said it is not a confirmed thing but it is definitely plausible