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Other non-current liabilities (Tables)
 12 Months Ended
Mar. 31, 2013
Other Liabilities Disclosure [Abstract]  
Other non-Current Liabilities

Other non-current liabilities comprise:

 

     As of March 31,  
     2012      2013  
     US$      US$  

Unearned revenues

      345,224         217,021   

Retirement benefits

      409,261         479,799   

Other liabilities

      202,844         197,438   
  

 

 

     

 

 

  

Total

      957,329         894,258