Former Prime Minister Manmohan Singh on Tuesday said 'unpleasant trends' of growing intolerance, communal polarisation and incidents of violent crimes propelled by hatred of certain groups will damage India's polity.

He was speaking at an event by the Rajiv Youth Foundation where he presented the Rajiv Gandhi Janma Pancha Sapthathi Puraskar to prominent faces and organisations who have made a contribution to society for the last decade.

Remembering former Prime Minister Rajiv Gandhi on his 75th birth anniversary, he said these trends are repugnant to the promotion of peace, national integration and communal harmony, which are cherished objectives enshrined in the Constitution. 'All of us need to reflect on how we can contribute to arresting these trends,' he said.

Recalling Rajiv Gandhi's words, Singh said: 'Nothing is more important than the unity and integrity of our nation. India is indivisible. Secularism is the bedrock of our nationhood. It implies more than tolerance. It involves an active effort for harmony.'

'No religion preaches hatred and intolerance. Vested interests, both external and internal, are inciting and exploiting communal passions and violence to divide India,' he said.

'These unpleasant trends of growing intolerance, communal polarisation, growing incidents of violent crimes propelled by hatred of certain groups and of mobs taking the law in their own hands can only damage our polity,' he added.