If they provided this offer on pre paid, customers use this Reliance connection for 6 months (till offer lasts) and after this period will throw away the reliance CDMA SIM (=RUIM) and take another CDMA network connection like MTS as any CDMA SIM can be used in open market handsets. That is Being a open market CDMA handset customer can choose any of the CDMA network provider of his/her choice.
Friends, there is a chinese rebranded phone company in India named as "A1 Lephone". It is NOT the Lenovo Lephone. Every CDMA open market handset has a gem logo on it. Very important - look for gem logo, If there is no gem logo, it is not OMH handset.