India, Sept. 22 -- In a letter to citizens on the day of the rollout of the Goods and Services Tax (GST) reforms, Prime Minister Narendra Modi on Monday urged the public to buy and sell "Made in India" products. Follow GST live updates.

The prime minister also urged state governments to encourage industry, manufacturing and improve the investment climate in their states.

".This festive season, let us also resolve to support products that are Made in India," Modi said in his letter. "This means buying Swadeshi products that have the sweat and toil of an Indian involved in their making, irrespective of the brand or the company that makes them."

He said that by purchasing products made by Indian artisans, workers, and industries, the publ...