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  <in-bse-cg:NameOfCommittee contextRef="D_CompositionOfCommittees41">Nomination and remuneration committee 1</in-bse-cg:NameOfCommittee>
  <in-bse-cg:NameOfCommitteeMembers contextRef="D_CompositionOfCommittees41">Swapan Sarkar</in-bse-cg:NameOfCommitteeMembers>
  <in-bse-cg:PositionOfDirectorInCommitteeOne contextRef="D_CompositionOfCommittees41">Executive Director</in-bse-cg:PositionOfDirectorInCommitteeOne>
  <in-bse-cg:PositionOfDirectorInCommitteeTwo contextRef="D_CompositionOfCommittees41">Member</in-bse-cg:PositionOfDirectorInCommitteeTwo>
  <in-bse-cg:NameOfCommittee contextRef="D_CompositionOfCommittees42">Nomination and remuneration committee 2</in-bse-cg:NameOfCommittee>
  <in-bse-cg:NameOfCommitteeMembers contextRef="D_CompositionOfCommittees42">Partha Chakraborty</in-bse-cg:NameOfCommitteeMembers>
  <in-bse-cg:PositionOfDirectorInCommitteeOne contextRef="D_CompositionOfCommittees42">Non-Executive - Independent Director</in-bse-cg:PositionOfDirectorInCommitteeOne>
  <in-bse-cg:PositionOfDirectorInCommitteeTwo contextRef="D_CompositionOfCommittees42">Chairperson</in-bse-cg:PositionOfDirectorInCommitteeTwo>
  <in-bse-cg:NameOfCommittee contextRef="D_CompositionOfCommittees43">Nomination and remuneration committee 3</in-bse-cg:NameOfCommittee>
  <in-bse-cg:NameOfCommitteeMembers contextRef="D_CompositionOfCommittees43">Kakali Ghosh</in-bse-cg:NameOfCommitteeMembers>
  <in-bse-cg:PositionOfDirectorInCommitteeOne contextRef="D_CompositionOfCommittees43">Non-Executive - Independent Director</in-bse-cg:PositionOfDirectorInCommitteeOne>
  <in-bse-cg:PositionOfDirectorInCommitteeTwo contextRef="D_CompositionOfCommittees43">Member</in-bse-cg:PositionOfDirectorInCommitteeTwo>
  <in-bse-cg:NameOfCommittee contextRef="D_CompositionOfCommittees68">Stakeholders Relationship Committee 1</in-bse-cg:NameOfCommittee>
  <in-bse-cg:NameOfCommitteeMembers contextRef="D_CompositionOfCommittees68">Swapan Sarkar</in-bse-cg:NameOfCommitteeMembers>
  <in-bse-cg:PositionOfDirectorInCommitteeOne contextRef="D_CompositionOfCommittees68">Executive Director</in-bse-cg:PositionOfDirectorInCommitteeOne>
  <in-bse-cg:PositionOfDirectorInCommitteeTwo contextRef="D_CompositionOfCommittees68">Member</in-bse-cg:PositionOfDirectorInCommitteeTwo>
  <in-bse-cg:NameOfCommittee contextRef="D_CompositionOfCommittees69">Stakeholders Relationship Committee 2</in-bse-cg:NameOfCommittee>
  <in-bse-cg:NameOfCommitteeMembers contextRef="D_CompositionOfCommittees69">Partha Chakraborty</in-bse-cg:NameOfCommitteeMembers>
  <in-bse-cg:PositionOfDirectorInCommitteeOne contextRef="D_CompositionOfCommittees69">Non-Executive - Independent Director</in-bse-cg:PositionOfDirectorInCommitteeOne>
  <in-bse-cg:PositionOfDirectorInCommitteeTwo contextRef="D_CompositionOfCommittees69">Member</in-bse-cg:PositionOfDirectorInCommitteeTwo>
  <in-bse-cg:NameOfCommittee contextRef="D_CompositionOfCommittees70">Stakeholders Relationship Committee 3</in-bse-cg:NameOfCommittee>
  <in-bse-cg:NameOfCommitteeMembers contextRef="D_CompositionOfCommittees70">Kakali Ghosh</in-bse-cg:NameOfCommitteeMembers>
  <in-bse-cg:PositionOfDirectorInCommitteeOne contextRef="D_CompositionOfCommittees70">Non-Executive - Independent Director</in-bse-cg:PositionOfDirectorInCommitteeOne>
  <in-bse-cg:PositionOfDirectorInCommitteeTwo contextRef="D_CompositionOfCommittees70">Chairperson</in-bse-cg:PositionOfDirectorInCommitteeTwo>
  <in-bse-cg:DatesOfMeetingInThePreviousQuarter contextRef="MeetingOfBoardOfDirectors1">2018-02-14</in-bse-cg:DatesOfMeetingInThePreviousQuarter>
  <in-bse-cg:DatesOfMeetingIfAnyInTheRelevantQuarter contextRef="MeetingOfBoardOfDirectors2">2018-05-30</in-bse-cg:DatesOfMeetingIfAnyInTheRelevantQuarter>
  <in-bse-cg:MaximumGapBetweenAnyTwoConsecutiveMeetings contextRef="MeetingOfBoardOfDirectors2" unitRef="pure" decimals="INF">104</in-bse-cg:MaximumGapBetweenAnyTwoConsecutiveMeetings>
  <in-bse-cg:NameOfCommittee contextRef="D_MeetingOfCommittees1">Audit Committee</in-bse-cg:NameOfCommittee>
  <in-bse-cg:DatesOfMeetingOfTheCommitteeInTheRelevantQuarter contextRef="MeetingOfCommittees1">2018-05-30</in-bse-cg:DatesOfMeetingOfTheCommitteeInTheRelevantQuarter>
  <in-bse-cg:WhetherRequirementOfQuorumMet contextRef="D_MeetingOfCommittees1">true</in-bse-cg:WhetherRequirementOfQuorumMet>
  <in-bse-cg:DatesOfMeetingOfTheCommitteeInThePreviousQuarter contextRef="MeetingOfCommittees1">2018-02-14</in-bse-cg:DatesOfMeetingOfTheCommitteeInThePreviousQuarter>
  <in-bse-cg:MaximumGapBetweenAnyTwoConsecutiveMeetings contextRef="MeetingOfCommittees1" unitRef="pure" decimals="INF">104</in-bse-cg:MaximumGapBetweenAnyTwoConsecutiveMeetings>
  <in-bse-cg:WhetherPriorApprovalOfAuditCommitteeObtained contextRef="OneD">Yes</in-bse-cg:WhetherPriorApprovalOfAuditCommitteeObtained>
  <in-bse-cg:WhetherShareholderApprovalObtainedForMaterialRPT contextRef="OneD">Yes</in-bse-cg:WhetherShareholderApprovalObtainedForMaterialRPT>
  <in-bse-cg:WhetherDetailsOfRptEnteredIntoPursuantToOmnibusApprovalHaveBeenReviewedByAuditCommittee contextRef="OneD">Yes</in-bse-cg:WhetherDetailsOfRptEnteredIntoPursuantToOmnibusApprovalHaveBeenReviewedByAuditCommittee>
  <in-bse-cg:TheCompositionOfBoardOfDirectorsIsInTermsOfSebiRegulations2015 contextRef="OneD">true</in-bse-cg:TheCompositionOfBoardOfDirectorsIsInTermsOfSebiRegulations2015>
  <in-bse-cg:TheCompositionOfAuditCommitteeIsInTermsOfSebiRegulations2015 contextRef="OneD">true</in-bse-cg:TheCompositionOfAuditCommitteeIsInTermsOfSebiRegulations2015>
  <in-bse-cg:TheCompositionOfTheNominationAndRemunerationCommitteeIsInTermsOfSebiRegulations2015 contextRef="OneD">true</in-bse-cg:TheCompositionOfTheNominationAndRemunerationCommitteeIsInTermsOfSebiRegulations2015>
  <in-bse-cg:TheCompositionOfTheStakeholdersRelationshipCommitteeCommitteeIsInTermsOfSebiRegulations2015 contextRef="OneD">true</in-bse-cg:TheCompositionOfTheStakeholdersRelationshipCommitteeCommitteeIsInTermsOfSebiRegulations2015>
  <in-bse-cg:TheCompositionOfTheRiskManagementCommitteeIsInTermsOfSebiRegulations2015 contextRef="OneD">NA</in-bse-cg:TheCompositionOfTheRiskManagementCommitteeIsInTermsOfSebiRegulations2015>
  <in-bse-cg:TheCommitteeMembersHaveBeenMadeAwareOfTheirPowersRoleAndResponsibilitiesAsSpecifiedInSebiRegulations2015 contextRef="OneD">true</in-bse-cg:TheCommitteeMembersHaveBeenMadeAwareOfTheirPowersRoleAndResponsibilitiesAsSpecifiedInSebiRegulations2015>
  <in-bse-cg:TheMeetingsOfTheBoardOfDirectorsAndTheAboveCommitteesHaveBeenConductedInTheMannerAsSpecifiedInSebiRegulations2015 contextRef="OneD">true</in-bse-cg:TheMeetingsOfTheBoardOfDirectorsAndTheAboveCommitteesHaveBeenConductedInTheMannerAsSpecifiedInSebiRegulations2015>
  <in-bse-cg:ThisReportAndOrTheReportSubmittedInThePreviousQuarterHasBeenPlacedBeforeBoardOfDirectors contextRef="OneD">true</in-bse-cg:ThisReportAndOrTheReportSubmittedInThePreviousQuarterHasBeenPlacedBeforeBoardOfDirectors>
  <in-bse-cg:NameOfSignatoryForQuartelyAffirmations contextRef="OneD">Swapan Sarkar</in-bse-cg:NameOfSignatoryForQuartelyAffirmations>
  <in-bse-cg:DesignationOfPersonForQuartelyAffirmations contextRef="OneD">Director</in-bse-cg:DesignationOfPersonForQuartelyAffirmations>
  <in-bse-cg:NameOfSignatory contextRef="OneD">Swapan Sarkar</in-bse-cg:NameOfSignatory>
  <in-bse-cg:DesignationOfPerson contextRef="OneD">Director</in-bse-cg:DesignationOfPerson>
  <in-bse-cg:Place contextRef="OneD">Kolkata</in-bse-cg:Place>
  <in-bse-cg:DateOfSigning contextRef="OneI">2018-07-11</in-bse-cg:DateOfSigning>
</xbrli:xbrl>