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REVENUE - Contract assets and contract liabilities (Details) - USD ($) | Mar. 31, 2023 | Mar. 31, 2022
--- | --- | ---
REVENUE |  |
Contract assets | $ 8,947,811 | $ 8,350,231
Unbilled |  |
REVENUE |  |
Contract assets | 19,485,914 | 14,216,187
Progress Payments |  |
REVENUE |  |
Contract assets | $ (10,538,103) | $ (5,865,955)

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