Why is it difficult to evaluate the use of smart card under RSBY, Jishnu? And, is it appropriate to compare RSBY with NREGA in the context of use of Smart Cards? Jishnu, are aware of the number of smart cards issued and used under NREGA? The RSBY has crossed 22.5 million. Also assess whether the cards under NREGA are being used as smart cards. However, to do that, you may have to stick around.............and go to the field.