Frontline demonstration (FLD) is one of the most powerful tools for transfer of technology. Keeping in view of an effective extension approach of FLDs for dissemination of mustard technology, an impact assessment of FLDs conducted by National Research Centre on Rapeseed-Mustard (NRCRM) in Bharatpur district of Rajasthan was assessed. The impact assessment was based on the comparison of beneficiary and non-beneficiary respondents with reference to increase in knowledge level of beneficiary farmers, extent of adoption of improved mustard production technologies and attitude of beneficiary farmers towards FLDs. It was found that the level of knowledge of beneficiary farmers regarding different practices of mustard production was higher than non-beneficiary farmers ranging from 1.11 MPS of soil treatment to 12.14 MPS of plant protection measures. The difference in adoption level between beneficiary and non-beneficiary farmers ranging from MPS 3.89 to MPS 40.50. The highest and significant difference was observed in adoption of fertilizer management (MPS 40.50) followed by seed treatment (MPS 37.50), use of high yielding varieties (MPS 26.00), seed rate and spacing (MPS 17.00), pest management ( MPS 12.00), harvesting / threshing and storage(MPS 11.33) and soil treatment (MPS 10.00). The overall difference in adoption level of different practices of mustard production technology MPT between beneficiary and non-beneficiary was 14.22 MPS. The study also reported that most of the beneficiary respondents had their attitude in positive direction towards FLDs. The mean percent scores of all the attitude statements ranged from 62.00 to 85.33 which indicated the favourable to most favourable attitude of the respondents towards different aspects of frontline demonstrations on mustard conducted by NRCRM

Keyword: Frontline demonstration;