For the NIMCET exam, subjects relevant to Mathematics will be considered as Math,  regardless of the specific name used in your BCA curriculum.The NIMCET exam assesses your aptitude for quantitative reasoning and problem-solving skills typically associated with mathematics. Even if the subject in your BCA program has a different name, the content likely covers areas like calculus, algebra, trigonometry, statistics, or probability, which fall under the umbrella of mathematics for NIMCET.

https://it.careers360.com/articles/nimcet-exam-centres

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