Singh gave the activists of Ekta Parishad a patient hearing and told them that the government was ready to look into their genuine demands.
Organisers and Rural Development Minister Jairam Ramesh have reached an agreement which Manmohan Singh has to endorse.
The landless labourers, peasants and tribals have been demanding land and employment opportunities.
The tribals started their march after talks with a team of Union minister failed.
25,000 Dalits are marching towards Delhi in hope of a better future.
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