Avni, most engineering kits for Incisive do not include the SoC Kit. If you don't actually need the kit components, just don't set SOCV_KIT_HOME when using the engineering build. If you do need the kit contents, it's probably safe to poitn SOCV_KIT_HOME to point at the kit in a normal Incisive release, preferably one with a similar version number.
In any case, please contact the Cadence AE who gave you the engineering kit for support, as these kits are usually built per customer issue and may have different features enabled or disabled. Your local AE would know more detail to be able to help you.