Shares of SBI Cards and Payment Services plunged over 6% to the day s low of Rs 710.50 on the BSE in Monday s trade reacting to the not-so-optimistic view on the company s growth outlook by a clutch of top domestic brokerages. Following SBI Card s December quarter earnings, Motilal Oswal downgraded the stock to Neutral while Nuvama and InCred reiterated their Reduce ratings.