The suicide rate among Indian farmers is 1.4 to 1.8 per 100,000. That is about 5-6 times lower than the overall rate in India or the United States. Most people pushing the story are relying on the fact that there are a lot of farmers in India, so even a low suicide rate is a lot of people dying.
We should, of course, be concerned whenever people are choosing to commit suicide, but it is nonsensical to point to a population with one of the lowest suicide rates (less than 1/10th the overall Japanese rate!) and call it an epidemic.