MUMBAI: Prime Minister Narendra Modi on Saturday set warning bell ringing for corrupts and dishonest people in the country, saying their problems are set to increase in the coming days.

"After 50 days - when the demonetisation will end - honest peoples' hardships will start decreasing, while those who are corrupt, their problems will increase," the PM said after inaugurating two Metro rail projects in Mumbai.

PM Modi termed the demonetisation of Rs 500 and Rs 1,000 notes a historic decision of the government, saying "the people of India will not accept corruption and black money".

"Our battle to fight corruption has been going on since the day we assumed office. A historic decision was taken on 8th November," the PM said.

The PM said people faced many hardships after demonetisation, but they still continued to support him (government) without getting influenced by the critics.

"There were efforts to mislead and even intimidate people but they supported us in the battle against corruption and black money," he said.