Used metaphorically to refer to the requirement or essential part of something.
आवश्यक हिस्सा
English Usage: The tooth of the matter is that we need more funding.
Hindi Usage: मामले का आवश्यक हिस्सा यह है कि हमें अधिक धनराशि की आवश्यकता है।
aavashyak hissa, avashyak hissa, aavashak hissa, avashyak hisa, aavashyak hisssa