The efficacy of phosphorous trichloride as a cyclising agent in Fischer-type bis-indolisation has been tried on 1,2-, 1,3- and 1,4-cyclohexanediones and dimedone. In each case, besides the respective bis(phenylhydrazone), a novel product is formed. The interesting, hitherto unreported structural and spectral features of some of the products and the outcome of our efforts have been discussed.