Read introduction to Nouns yday:

Three kinds of Noun words:
Masculine-Pulinga;
Feminine – StreeLinga;
Neutral – NapumsakaLinga.

Masculine words ends with Ah, Ee, U
Feminine words ends with AAh, EEE
Neuter words ends with Ahmm

Masculine EkaVachanam Dvivachanam BahuVachanam
Bidaala Bidaalaha Bidaalou Bidaalaah
Aja Ajaha Ajaou Ajaaha
Balaka Balakaha Balakou Balakaaha
Hasta Hastaha Hastou Hastaaha
Hiran Hiranaha Hiranou Hiranaaha
Kaka Kaakaha Kaakou Kaakaaha
Deva Devaha Devou Devaaha

Feminine EkaVachanam DviVachanam BahuVachanam
Kalah Kalah Kalaey Kalaaha
Lalana Lalanah Lalaney Lalanaaha
Rekha Rekha Rekhey Rekhaaaha
Bharya Bhaarya Bhaaryeh Bhaaryaaha
Paduka Padukaa Padukeh Padukaaha

Neuter Ekavachanam DviVachanam BahuVachanam
Patra Patram Patrey PatraaNI
Jalam Jalam Jaley JalaaNI
Bhushanam Bhushanam Bhushaney BhushanaaNI
Nayanam Nayanam Nayaney NayanaaNI
Hrudyam Hrudayam HrudaEy HrudayaaNI