NAGPUR: Technology to prepare wine from Nagpur orange has already been tried out successfully by some wine making industries. But, unfortunately not a single industry has come up in Vidarbha on any orange processing unit due to varied reasons including lack of political will on the part of local leaders. In an effort to give one more try to motivate entrepreneurs by instilling confidence in them about availability of technology, Vidarbha Economic Development (VED) is organisng a one-day seminar on the subject on Friday at Guru Nanak Bhawan near Nagpur University campus.