Hindi/Plurals

In Hindi plurals are different, but not difficult. For example:

Singular Plural Singular in Hindi Plural in Hindi
Country Countries देश (deśa) देशों (deśoṅ)
Tree Trees वृक्ष (vrikśa) वृक्षों (vrikśoṅ)
Book Books पुस्तक (pustaka) पुस्तकें (pustakeṅ)

As per the above examples, it can become oṅ or eṅ as per the word.