Adline Mewis Quadros Castelino is an Indian beauty pageant titleholder who was crowned Miss Diva Universe 2020.

[9] During the contest's sports round held in Bennett University, she won the Miss Smasher award, for her performance in badminton.

[10] On 22 February 2020, she was crowned as Miss Diva Universe 2020 by the outgoing titleholder Vartika Singh at Yash Raj Studio, Andheri, Mumbai.

[18] As one of the finalists at the contest, Castelino was asked by one of the judges, Tatyana Orozco - "Should countries lockdown due to COVID-19 despite the strain on their economies or should they open their borders and risk a potential increase in infection rates?"

[24] Castelino broke the 20-year drought of India's non placement in the Top 5 of Miss Universe, which was previously achieved by Celina Jaitley, who was the 4th runner-up in 2001.

[31] During the COVID-19 pandemic in 2020, she helped in providing essentials like food supplies, sanitizers and face masks for Desire Society, a non-profit voluntary organization that cares for children infected with HIV in India.

[citation needed] At Christmas the same year, she went as a Secret Santa to distribute gifts and spent time with the children supported by the society.

[33] She also initiated fundraisers for the Akshaya Patra Foundation, to help provide meals and packed grocery kits to the marginalized and low-income segment of the society, comprising daily wage workers, migrant laborers, people at old age homes and night shelters.

[34] Castelino, supporting this cause, said - "The spread of coronavirus has taken a lot from us, but let this pandemic not take away our humanity and ability to understand the needs of our brethren.

[35] She promoted a drive titled 'PCOS Free India' to help women reverse the condition naturally through holistic wellness practices.