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The study indicate that 55.00 per cent, 47.00 per cent and 53.00 per cent of the farmers perceived the various sources of information as moderate level of credibility in zone-I, zone-II and overall sampled respectively. Out of 24 sources of information, 3 sources of information namely, agriculture scientists, package of practices and demonstration were rated as highly credible sources by the wheat growers in zone-I and only 2 sources of information namely, agriculture scientists and package of practices were rated as highly credible sources of information by the wheat growers in case of zone-II and in pooled analysis. In overall analysis the socio-economic status, education, extension contact, mass media exposure, risk orientation, innovation proneness and localiteness- cosmopoliteness had positive and highly significant relationship whereas, age had negative and land holding and income had positive but non significant relationship with credibility of various sources of information perceived by the wheat growers.