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Deferred revenue and customer advances (Tables) | 12 Months Ended
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Mar. 31, 2015
Deferred revenue and customer advances |
Schedule of respective balances of deferred revenue and customer advances |
|  |  | As of March 31, |
|  |  | 2014 |  | 2015 |
|  |  | (in millions of RMB) |
| Deferred revenue |  |  | 4,766 |  |  | 5,781 |
| Customer advances |  |  | 2,158 |  |  | 2,578 |
​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  |  | 6,924 |  |  | 8,359 |
| Less: current portion |  |  | (6,496 | ) |  | (7,914 | )
​ | ​ | ​ | ​ | ​ | ​ | ​
| Non-current portion |  |  | 428 |  |  | 445 |
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​

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- Definition Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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- References No definition available. + Details
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