The main reason for getting two similar cards is milestone benefit. It gives cleartrip 2k voucher for 1 lakh and 2lakh spends each year. I made 8k last year through voucher alone.
@JimCarrey It seems that we are on same track. Applied on 1 sept and after that 11 days sms on 6th, yesterday got that 9 days sms. Lets see what happens next.