Abstract. We have done comprehensive abundance analysis using high resolution spectra for IRAS01427+4633, IRAS 06165+3158 and IRAS 19135+3937 which occupy the RV Tauri box in the IRAS two colour diagram. We have also analyzed RV Tauri stars SU Gem, V453 Oph and TX Per. We find abundance anomalies caused by selective depletion of refractive elements for SU Gem and IRAS 19135+3937, although the effect is less distinct for the later. This effect has been observed in some post-AGB stars and RV Tauri stars of spectroscopic class B. We have done a detailed abundance analysis for V453 Oph which is the only galactic RV Tauri star reported to exhibit s-process enhancement. We find relative enrichment of $\alpha$ elements Mg, Si, Ca and Ti generally seen in old disk or halo objects and modest s-process enhancement [s/Fe = 0.6]. We find very mild indication of s-processing in IRAS 06165+3158; a metal-poor object with RV Tauri like colours.