摘要：Hub and Spoke Model was established for dissemination of the innovative farming technologies at farmers' doorstep.The study was conducted to measure the Effectiveness of Hub and Spoke Model for dissemination of innovative farm technologies at Tiruvannamalai district of Tamil Nadu.The respondents were selected by adopting purposive random sampling technique.A sample of 75 respondents from five villages of Polur block was selected for this study.The hub and spoke model was established and the knowledge gain of the subjects both at the pre and post exposure stages were collected using teacher made knowledge tests respectively.The data were collected using a well structured and pre-tested interview schedule.The data were analyzed by using appropriate statistical tools.The percentage of knowledge gained before the exposure to treatment was 40.20 per cent and after exposed it was 76.70 per cent.The mean knowledge gain is 36.50 per cent.The ‘t' value 19.93 per cent indicates that the knowledge gained by the respondents was found to be significant at one per cent level.It was identified that there existed a significant differences in the effectiveness of the hub and spoke services in imparting knowledge.
