You were allotted a seat in ESI-MC&PGIMS&R, Banglore  in Round 1 and you opted to participate in Round 2 and so you were allotted RN Cooper Medical College, But now, if you are allotted a seat in Round 2 but you want to leave that seat and opt for State Counselling, you might have to forfeit your security deposit. If you look at the FAQs available at https://mcc.nic.in/UGCounselling/Documents/UGSchemeFinal.pdf, you cannot skip reporting a College allotted in Round 2. So if you are fine forfeiting your security deposit then you can may be consider joining RIMS. But Cooper Medical College is placed ahead of RIMS in the NIRF rankings.