Hey, yes you can do BSc Speed and hearing course and then apply for Indian Defence if you really wish to. This course is responsible for the assessment and treatment of a broad range of speech, voice, language, swallowing and cognitive-communication impairments who have suffered a stroke, head injury, or cancers of the head and neck etc. It is basically a treatment for the disables to speak fluently. If you are interested in the course you can go ahead, it has clinical practices and people who are passionate to help others take up this course. If you are one you can go ahead, it will not disturb your Indian Defence force career but maybe help you in this field as well.
Best wishes
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