सो जा राजदुलारी सो जा

'So Jaa Rajdulari So Jaa' is the cradle-song of Bhagya Laxmi (1944), a Sarvottam Badami social drama scored jointly by K. C. Dey and G. M. Durrani. Sitting in the tender lori register that almost every 1940s family melodrama reserved for its emotional centre, the number uses a slow, rocking pulse and soft accompaniment to address the title's 'rajdulari' — the cherished daughter. It is one of eight songs written for the film by lyricist Saraswati Kumar 'Deepak'.

Credited to the K. C. Dey–G. M. Durrani team, the lullaby leans on a gentle, repetitive melodic cradle typical of the lori form — a slow tempo, soft harmonium and a swaying rhythm meant to soothe rather than dazzle, in keeping with K. C. Dey's devotional-melodic instinct.