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NOTE 19 - SEGMENT INFORMATION (Details) - Revenue from External Customers by Products and Services (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenue from External Customer [Line Items]
Revenue	$ 8,030,016	$ 4,199,551
% of Total Revenue	100.00%
Trading [Member]
Revenue from External Customer [Line Items]
Revenue	7,192,503
% of Total Revenue	90.00%
Construction [Member]
Revenue from External Customer [Line Items]
Revenue	$ 837,513
% of Total Revenue	10.00%

X

- Definition

Percentage of segment to total revenue.

+ References

No definition available.

+ Details

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Namespace Prefix:	igc_
Data Type:	num:percentItemType
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X

- Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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