I think one complete segment is missing that is filled by Cultus (no doubt leader in this segment despite several quality and safety issues) followed by Vitz used one (new arrival in the market imported form japan for last two to three years) and then santro.
Another segment which is entry level sedan is mostly filled by Baleno and previoiusly by Margalla, Liana could not fetch the same market share as previously Baleno and Margalla did.