Arifunnahar  is a famous fitness trainer and director ICL Counsel and one of the unique leading fitness instructor of Bangladesh. She completed her honours graduated on science . From her childhood she was sporty person.

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 In June 2010 she moved to London, UK then she joined in ISS Facility Services Limited, London UK (ISS Worldwide) while she was living London. In the same year she joined in healthy food shop industry EAT Ltd. London, UK and served as a Kitchen Leader/Duty manager until 2017.

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She became member of Atherton Leisure Centre (A fitness Centre), London UK. In 2013 she became a member of Body Lines Fitness (A women’s fitness centre) Bethnal Green, London after that she becomes a member of Whitechapel Sports Centre, London. In 2016 she became member of Seymour Leisure Centre, Westminster, Marylebone, London.

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In 2016 she completed her study including practical on fitness from PT Academy UK. According to the institution, she obtained good marks on her study and obtained a Fitness Instructor Certificate from PT Academy UK. In 2017 she completed her swimming lesson from www.swimming.org  venue St George's Leisure Centre, London UK.

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In 2018 she joined as a Senior Fitness Trainer in Live Fit Performance (a concern of Paradise Group of Bangladesh), and worked until January 2020. She is currently Gym Trainer (Senior Section) of International Hope School Bangladesh is an English medium, private school in Bangladesh, previously called International Turkish Hope School, Uttara. Dhaka.

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In fact, she is online fitness instructor, advisor. Now a days she giving distance counselling to others like diet plan, workout plan, daily routine, train to the junior instructor. She trained many notable person including actress like; Munni Shaha, Ahona, Aporna, Mousumi Hamid, Sarmin Sajjad and more