क (ka) series

The Hindi alphabet of consonants begins with letters and sounds that are formed by moving the back of the tongue near the soft palate.  These correspond to the k and g sounds in English.   Hindi, however, differentiates between the letters क (k) and ख (kh) and ग (g) and घ (gh).  Kh and Gh also contain a short puff of air after the consonant called aspiration.  One way to experience this is to put your hand up and feel the puff of air when you pronounce kh and not when you say k.   Aspiration (the puff of air)  differentiates different sounds and letters in Hindi.

The first letter is क (k) as in skit:

Yo

The next letter is ख (kh) as a strongly aspirated version of kit:

Yo

 

Following k and kh is the letter ग (g) as in good.  Note that the tongue is in the same place for this sound as for k, but there is a resonance in the vocal chords, which is referred to as voicing:

 

Yo

 

After ग (g) comes घ (gh) as a strongly aspirated version of dog house spoken quickly:

 

Yo

 

The last letter in this series is actually a nasal.  To pronounce it, put your tongue in the same position as for k, but allow air to flow through your nose.  This sound may be difficult to do on its own.   Fortunately, in Hindi it will only occur before a k, kh, g, or gh sound:

 

Yo