e for Enugu

e for Enugu
ఏనుగు

ఏ - e as in Everest

ను - nu 

గు - gu

Remember, u vowel sign is add a u to the consonant.

so, 

గ + ఉ = గు (gu)

ga+u = gu

న + ఉ = ను (nu)

na+u = nu

The long vowel ఊ has the vowel sign as show below.

న + ఊ =  నూ  (nU/noo)

na+U = noo/nU

There are some consonants(hallulu) in telugu which are so similar except for few minor changes.

For example, look at the following consonants,

వ,ప,న,స,

va ,   pa,   na,   sa

difference between va and pa is just whether the thala kattu(tick mark on top of letters) are joined are not. In va it is joined while in pa it is not.(I try to remember like this pa is separate)

difference between sa and na is just whether the thala kattu(tick mark on top of letters) are joined are not. It na is joined while for sa it is not. (I try to remember like this sa is separate)