After the classification of vowel sounds the consonant sounds are classified. These sounds are classified as velars, affricates, retroflexs, dentals, bilabials, nasals, frictionless continuants, trill, flap, laterals, fricatives & glottal.

          The consonant /s/ਸ is called the alveolar fricative. The blade of the tongue approaches the teeth ridge leaving a narrow passage. The air squeezes out with friction. In the production of /h/ਹ consonant, the air passes with a friction in the glottal region. This is called glottal fricative.

          In Gurumukhi script, the consonants / K, Kh, g/ਗ/ਕ, ਖ, ਗ are velar sounds. In the production of these sounds, the back part of the tongue touches the soft palate. After releasing the contact, the air comes out with plosion. The consonants /c, ch, j/ ਚ,ਛ,ਜ are palato-alveolar affricates. The front part of the tongue touches between the teeth ridge and the hard palate. The consonants , th, ਟ,ਠ,ਡ are retroflex sounds. In the production of these sounds, the tip of the tongue called back and touches to the hard palate. The consonants like /t, th, d/ਤ, ਥ, ਦ are dental sounds. The tip of tongue touches to the back part of the teeth. When the consonants /p, ph, b/ਪ, ਫ, ਬ are produced, the lips are brought together into contact. These are called bilabial sounds. The sounds , ñ, n, , / ਙ,ਞ,ਣ,ਨ,ਮ are called velar nasal, palatal nasal, retroflex nasal, dental nasal and bilabial nasal respectively.

          In the production of y/ਯ, the front part of the tongue raises towards the hard palate. This is called palatal frictionless continuant. In the production of /r/ਰ, the tip of the tongue approaches towards the alveolar ridge and taps. This is called alveolar trill sound. The /l/ਲ consonant is a lateral sound. The front part of the tongue touches the back of the upper teeth. The air comes out by the sides of the tongue. The sound /v/ਵ is called labio-dental. In the production of this sound, the lower teeth touches to the upper lip. The sound /r/ੜ is called Flap. In the production of this sound, the tip of the tongue curls back and approaches the hard palate but does not make a contact. In the production of /sh/ਸ਼  , the front part of the tongue is raised towards the hard palate leaving a narrow passage. The air comes out with friction. This is called palato-alveolar fricative.

          The sound /x/ਖ਼ is called velar fricative. The back part of the tongue is raised towards the soft palate. In the production of /g/ਗ਼ the back part of tongue is raised towards the soft palate. This sound is also called velar fricative. In the production of /z/ਜ਼, the blade of the tongue approaches the teeth ridge. The air passes through the narrow passage with friction. This is called alvealor fricative. While producing /f/ਫ਼ the lower lip approaches the upper teeth. The air comes out with friction. This sound is called labio-dental fricative. In the production of /l/ਲ਼ sound the tip of the tongue curls back and touches the hard palate. The air passes by the sides of tongue. This is called retroflex lateral.