Are bhai us samay rupay millenua tha hi nhi na isliye
Warna kyu diners club privilege se hamesha marott bonvoy milta hai
Millenia master se regalia gold master milta hai
Millenia visa se regalis gold visa
Through customer care it's possible
But most of time variants remain same in auto upgrade system
Even while doing with customer care if you don't mention variant they upgrade in same network only.