The Aerio Looks like the Liana. A 1600CC unregistered 2003 model will cost around 18 - 19 laks. There are two models. The Sadan and the Estate.
As for the Liana, there is a 1300 CC and a 1600 CC one as well. Not sure whether 1300CC is available for the Aerio. The 1300 one doesnt have options like ABS, Power Mirrors, Read Head Rests, Fog laps, etc. The company price of the 1300cc is 24Laks including VAT. This one is manual transmition.
In the 1600CC, you can get automatic transmition as well.