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v3.25.3

BUSINESS DESCRIPTION (Details) | 6 Months Ended
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Sep. 30, 2025
Accounting Policies [Abstract] |
Percentage of Enrollment of Patients During Period | 50.00%

X
- Definition The entity successfully enrolled more than fifty percentage of patients for the ongoing clinical trial and studies during the period. + References No definition available. + Details
Name: | igc_PercentageOfEnrollmentOfPatientsDuringPeriod
Namespace Prefix: | igc_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration