From a young age, Rebello displayed a natural talent for theater and had a particular knack for creating
humorous songs. His ability quickly gained him acceptance among the public. Seeking job opportunities, Rebello relocated to
Bombay, where After securing a job, he pursued his passion for singing and acting. Despite his
lean physique, Rebello possessed a captivating range of facial expressions that captivated audiences, establishing him as a prominent comedian. Popular directors of the era began offering him roles, and his comic songs became sought-after, often receiving applause. Expanding his artistic horizons, Rebello ventured into scriptwriting and directing. His
diminutive stature further enhanced his comedic presence on stage, providing him with an advantage in delivering his songs. Directors readily cast Rebello in comedic roles due to his effortless ability to elicit laughter from audiences with his gestures. Additionally, Rebello authored several
tiatrs, with popular works including
Hanv Patki (I Confess),
Bomboinchi Istil (1940), and
Avoicho Ghutt (Mother's Secret), which gained popularity and established him as a leading playwright. Rebello recognized the significance of publishing his
tiatr scripts, setting him apart as one of the few playwrights of his time to do so. Rebello achieved a milestone with the publication of his play
Bomboinchi Istil in book format.
Tiatr, a form of
musical theater, had its initial staging at The New Alfred Theatre in Bombay on 17 April 1892, and subsequently found its way to several theaters. However, among these, the Princess Theatre Bhangwadi holds a distinct reputation as the premier destination for
Konkani tiatr, often referred to as its
Mecca. Rebello played a pivotal role in establishing the prominence of the Princess Theatre Bhangwadi for Konkani
tiatr. He became the first playwright to showcase a
tiatr production at this venue in Bombay. Prior to Rebello's breakthrough, the Bhangwadi Theatre primarily hosted
Gujarati and
Marathi dramas (
nattaks), different theatrical forms. Furthermore, it was Rebello who bestowed upon him the distinctive
stage name "Kid Boxer." Boxer's debut in the
tiatr genre propelled his career forward, leading to several offers from other directors. Rebello possessed a discerning talent for identifying promising newcomers and nurturing their potential through casting then in his
tiatrs, a form of
Konkani theater. Among those who benefited from Rebello's
patronage was
A. R. Souza Ferrão, a Konkani actor who received an early career opportunity to showcase his skills in Rebello's productions on the
Konkani stage. Rebello also played a pivotal role in introducing
Seby Coutinho, an aspiring actor, to the Konkani
tiatr stage. Coutinho made his debut at the Princess Theatre Bhangwadi in
Bombay through Rebello's
tiatr titled
Avoicho Ghutt. Additionally, Rebello discovered and introduced Konkani singer
Romeo Mendes to the commercial stage in his
tiatr Bomboichi Istil. Mendes captivated the audience with his rendition of the song "Maim Putak Axeta," earning applause and
encores. During this period, Vaz adopted the stage name "Master Vaz," while Rebello composed songs specifically tailored for Vaz's performances. ==Personal life==