in reality the age diff b/w arjun and subhadra was quite a bit. see krishna and arjun's age is same right? and subhadra was born to vasudev after he was released from prison(kamsa's death) which was when krishna was 11 or 12 yrs old. so subhadra would be 12 or more yrs younger to arjun
cvs should have chosen someone who could have contrasted pooja like in case of kunti and madri.
veebha is too mature for this role. she could have been sudeshana instead.