Jackdom, a playwright and director, frequently staged tiatrs in Bombay and played a pivotal role in Conceição's emergence as an actor, despite them not having a personal acquaintance at the time.

[3] In 1953, Conceição began touring as a singer in Goa with C. Alvares' group during the performance of their tiatr Mauxi Vo Paichi Bail (Aunt or Father's Wife?).

During his stay in Goa, he remained active in dramatic pursuits, participating in the local tradition of tiatrs, which were predominantly staged at night and occasionally extended into the early hours of the morning.

When the trio took the stage, Conceição would be the first to appear, receiving a reception marked by thunderous applause, enthusiastic cheers, and even the ignition of fireworks and locally-crafted explosives outside the performance venue.

These compositions captivated the public's attention as they addressed a range of political issues, gaining favor among the populace due to their ability to articulate the sentiments of the common man and provide critical perspectives on the government and its various departments.

Known for his talent, he consistently took on the leading roles in their theatrical productions, portraying characters with such nuance that finding a suitable replacement for him proved to be a daunting task.

Together with the trio Conception Nelson-Anthony, he co-directed the popular tiatr production titled Lokak Lagon (Due to People) on 15 April 1963, at the Municipal Garden in Vasco da Gama, Goa.

As a result, he rose to prominence as one of the most popular artists within the tiatr industry, with his performances and success in character portrayals solidifying his reputation as a household name.

Displaying a distinct inclination towards tragic roles, Conceição found his artistic prowess most effectively expressed in these emotionally charged portrayals.

His devotion to the tiatr stage, a traditional Goan theater form, earned him the respect of veteran directors such as A. R. Souza Ferrão, J. P. Souzalin, C. Alvares, and M. Boyer.

Despite experiencing health-related challenges and receiving advice to abstain from performing, his love for the tiatr compelled him to remain connected to the art form.

His final memorable role materialized in John Claro's Purtugez Kolvont (Portuguese Artist), a portrayal characterized by such realism and naturalness that it left audiences astonished, blurring the boundaries between reality and the theatrical realm.

[3] In addition to his acting career, Conceição ventured into playwriting and directing, contributing approximately ten tiatrs to the theatrical repertoire.