My Grandfather (70+) has been cheated while buying a 2nd hand car

Few weeks ago, my grandfather booked a deal with a dealer to buy Skoda Fabia 2010 model, He was very desperate to buy car so without telling us at home, he carried his hard saved money and went to seller to buy that car. Machine Problems 1. On the very next after he bought that car, clutch plate broke and costed us 10000. 2. Car AC has not been working, they tols, its gas problem, but who knows. 3. Power windows are not working, infact one window is not even closing. 4. Rear gates are blocked, not opening. 5. Dickey is jammed and does not open. 6. Lights also don't work. 7. Engine has a very bad noise coming out. 8. Wipers are damaged and old. 9. No stapney 10. Displays and audio systems removed, leaving a void. 11. Handbrakes also not working....and many more Now the question is, why did he bought it?? - Because, he was manipulated by seller/dealer that he cannot get better than this under his budget which is 1 lakh. CONCERNS 1. As he has very low to no knowledge of these things, he trapped under his telling, believing he's an expert and helping him. 2. Now, when everyone's telling him that, he made a big mistake, he is very tensed about it. Also he is BP and Diabetes patient, which made it more concerning for us. 3. Dealer told that he will sold it to someone and give him his money back, but he is just making stories and giving false hopes. 4. Dealer also saying, we showed you car, you agreed and bought, now if anything happens, its not our responsibility. 5. They steering is so jammed that its unsafe to even drive it on road, Even more than trucks used to have in earlier daays. They told that they had put some oils and it will be free in few days. 6. I also believe Odometer has been tapered, but not sure. 7. MOST importantly He is concerned that, he made mistake, so he has to live with it (which I know is not true), he should check it better before buying, he gave his words so now he cannot turn around, which I know is not true and law must have something to overcome these situations. Please HELP, and let me know, how to proceed and what are the possible allegations, to make my case stronger and make sure, my grandfather get justice and those frauds gets a big time lesson for life.