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ABSTRACT We present the analysis of the time series observations of CoRoT 102699796 obtained by the Convection, Rotation and planetary Transits ( CoRoT) satellite that show the presence of five independent oscillation frequencies in the range 3.6-5 c d−1. Using spectra acquired with FLAMES@VLT, we derive the following stellar parameters: spectral type F1V, Teff= 7000 ± 200 K, log ( g) = 3.8 ± 0.4, [M/H]=−1.1 ± 0.2, v sin i= 50 ± 5 km s−1, L/L⊙= 21+21− 11. Thus, for the first time we report the existence of a metal-poor, intermediate-mass pre-main-sequence (PMS) pulsating star. Ground-based and satellite data are used to derive the spectral energy distribution (SED) of CoRoT 102699796 extending from the optical to mid-infrared wavelengths. The SED shows a significant IR excess at wavelengths greater than ∼5 μm. We conclude that CoRoT 102699796 is a young Herbig Ae (F1Ve) star with a transitional disc likely associated with the H ii region [FT96]213.1-2.2. The pulsation frequencies have been interpreted in the light of the non-radial pulsation theory, using the losc code in conjunction with static and rotational evolutionary tracks. A minimization algorithm was used to find the best-fitting model with M= 1.84 M⊙, Teff= 6900 K which imply an isochronal age of t∼ 2.5 Myr. This result is based on the interpretation of the detected frequencies as g modes of low-moderate n-value. To our knowledge, this is the first time that such modes are identified in a intermediate-mass PMS pulsating star. Since CoRoT 102699796 lies in the region of the Hertzsprung-Russell (HR) diagram where the δ Sct and γ Dor instability strips intersect, we argue that the observed pulsation characteristics are intermediate between these classes of variables, i.e. CoRoT 102699796 is likely the first PMS hybrid γ Dor-δ Sct pulsator ever studied. [ABSTRACT FROM AUTHOR]