I write the lyric for Mr. Gandi as he is not able to find it online.It is not complete though.
Dulchhay haoay na na na phool noy
Dakhina batashe e nagpashe samay noy
Khola baranday e nirjonotay ceiling er bondhone
Matir byabodhane dulchhe skholito boshona
Neelanjana
Neelanjana
Neelanjana

Premiker sporsho anbena shihoron ar oi mone
Nachiketa duti haath shunnye chunrbe phanka asphalane
Urche machi na na na abujh noy
Se ajo ek tai machi rai ghire roy
Khola baranday e nirjonotay ceiling er bondhone
Matir byabodhane dulchhe skholito boshona
Neelanjana
Neelanjana
Neelanjana



Lashkata ghare jodi chera hoy tar buk sangopone
Dekhbe shekhane rakh biborno ak mutho sapno jatane
Je sapno kono kishorer deya upohar gaaner bhashay
Je sapno prathagata mithhe kapat sansarer ashay

Akhon samay na na na ratri noy
Se aj jibon ratri periye gyache hai

Khola baranday e nirjonotay ceiling er bondhone
Matir byabodhane dulchhe skholito boshona
Neelanjana
Neelanjana
Neelanjana