Prime Minister Rajiv Gandhi could not have wished for a better pre-election year. A bumper food crop is on the anvil. Despite periodic hiccups, the stock - market is going through the roof, prices appear, for the time being, under control, companies are not doing badly at all, and even industries which had fared indifferently over the last few years (for instance, fertiliser and cement) have perked up. And though the overall mood among businessmen and economists is not quite euphoric - it's cautiously optimistic - many believe the good times should last for at least a couple of months.