v3.8.0.1
Document and Entity Information
3 Months Ended
Mar. 31, 2018
shares
Document Information [Line Items]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Mar. 31, 2018
Document Fiscal Year Focus 2018
Document Fiscal Period Focus Q1
Trading Symbol SYNT
Entity Registrant Name SYNTEL INC
Entity Central Index Key 0001040426
Current Fiscal Year End Date --12-31
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 82,967,354