Brother dont even think of flop cars like Nissan Suuny, KIA Spectra/ Classic, Chevrolet Optra, Lancer, LIANA, Baleno etc they are all available for 6-7 lacs because they are obsolete.
you can get a 2002-03 XLi for 7 lac but you have to spend 20-30K on it.
2nd choice is obviously Corolla E100 (Indus Corolla) 97-98 GL 1.3L but you have to look for a good car since majority are engine swapped or auction number.
3rd choice you can get fish shape 2006 City vario or Manual, M/T is good since Vario dont run on CNG.
You can also get 2002-03 old shape City EXiS Auto or M/T for 550-600K.
2001-02 Prosmatec are also available for 6-7 lacs but they are gas guzzler high maintenance items abused by boy racers or office uncles so its best to avoid them.