Shoes are labor intensive and wheat is capital-intensive.
In your diagram, clearly identify the production points, the consumption points, the international price, and the volume of exports and imports for each country. Indicate which country has a comparative advantage in which good. Singapore has a comparative advantage in wheat and India in shoes, according to the Heckscher-Ohlin theorem. When trade is opened, the price of the good in which the country has a comparative advantage will rise relative to the other good. Hence, the price of wheat will rise in Singapore and the price of shoes will rise in India.