Front-line demonstration constitutes one of the best methods accessible when it comes
to technology assignment. The current study aims to identify the mustard [Brassica juncea
(L.) Czern.] yield gap caused by FLDs. Four district demonstrations of the AICRP on
Mustard were held during 2021–2022, 2022–2023 and 2023-2024 and were implemented in a
number of villages in the eastern Vidarbha district for 800 farmers. The methods used by the
majority of farmers were used as a control to compare them with advised methods. According
to the average Three years data, the average yield of the exhibited plot was (617 kg/ha),
which was higher than the control's yield of (347 kg/ha). Additionally, there was an additional
yield of (269.31 kg/ha) and (78.38%) increase in average mustard productivity. The average
index and technology gap were determined to be (48.60%) and (583.25 kg/ha), respectively.
The range of the expansion gap was (163 kg/ha) to (437.92 kg/ha).