Hi Maya,
You can go for Lalbag Pride by Ideal Vastunirman Pvt. Ltd. at Chinchwad where the price of 1BHK in 550-580 sq ft, @ Rs. 2550/sq ft i.e 14-15 lacs.
Otherwise, Sahara Silver by Sahara Associates at Saswad offers 1/2 BHK flats from 650-834 sqft, @ Rs.3500/sqft. i.e 22.75-29 lacs. Both the property prices are negotiable and within your budget.