Civil society groups under the umbrella of ‘Bharat Jodo Abhiyan’ Tuesday announced a month-long campaign to promote communal harmony. In a statement issued on Tuesday, the civil society organisations, which had come under a common umbrella ahead of the Congress’ ‘Bharat Jodo Yatra’, said they will organise a host of events to revitalise citizens who take pride in India’s rich, diverse, plural cultural heritage and work towards a society based on constitutional values.