Web Exclusive Sep 07, 2020 Railways Increases Devlali-Muzaffarpur Kisan Rail Frequency Due to overwhelming demand, the Indian Railway has decided to increase the frequency of Devlali-Muzaffarpur bi-weekly Kisan Rail as tri-weekly with effect from September 8. Giving this information through a press release, Central Railway said that the frequency of Link Kisan Rail was also being increased from bi-weekly to tri-weekly between Sangola and Manmad.