sarrainodu movie confusion

hii i m arpita new in this forum...today i watched sarrainodu movie..it is awesome..but who was main heroine rakul or Catherine...rakul had few scene in compare to Catherine...nd whom did Gana aka allu arjun love ?Janu or MLA ?becoz from starting he loved MLA and after coming of Rakul he decided to marry her...it was his love or only sympathy for Rakul? i think makers should make part 2 of this loving movie..in which shown how to gana fall for Rakul nd share sweet moment with her instead of MLA nd MLA turn in negative to separate janu nd gana...