To identify if Pitra Dosha is present in your Kundli, look into the placement of planets in relation to the 9th house (house of father) and the presence of any afflictions or malefic influences on this house. Pitra Dosha may be indicated by unfriendly planetary positions or combinations that affect the ancestral lineage or family heritage. Consulting a knowledgeable astrologer can help identify Pitra Dosha and provide guidance on potential remedies.