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NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES (Detail) - Schedule of Estimated Useful Lives | 9 Months Ended
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Dec. 31, 2012
Building [Member] |
Estimated Useful Life (years) | 5-25 years
Plant and Machinery [Member] |
Estimated Useful Life (years) | 10-20 years
Computer Equipment [Member] |
Estimated Useful Life (years) | 3-5 years
Office Equipment [Member] |
Estimated Useful Life (years) | 3-5 years
Furniture and Fixtures [Member] |
Estimated Useful Life (years) | 5-10 years
Vehicles [Member] |
Estimated Useful Life (years) | 5-10 years

X
- Definition The estimated useful life of assets held by the Company. + References No definition available. + Details
Name: | igc_EstimatedUsefulLife
Namespace Prefix: | igc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration