Incremental dynamic analyses (IDA) are conducted on mid-rise (4- and 8-storey) special moment resisting RC frame buildings. The buildings are designed for the older and the revised Indian codes, without and with strong-column weak-beam (SCWB) design criterion, respectively. Three different configurations of RC frame buildings consisting of bare frame, uniformly infilled frame and open ground storey (OGS) are considered. In order to assess the seismic fragility, FEMA P695 methodology is used and median collapse capacity, collapse margin ratio (CMR) and record-to-record variability are estimated. The obtained CMR suggest that among the investigated buildings, the uniformly infilled and OGS buildings have better performance, when compared with their counterpart bare frames. The consideration of SCWB design leads to significant improvement in the seismic performance and collapse fragility of buildings, which reduces upto 16% and 50%, in case of 4- and 8-storey buildings, respectively.