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        <xbrli:entity>
            <xbrli:identifier scheme="https://www.nseindia.com/xbrl">BLKASHYAP</xbrli:identifier>
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        <xbrli:period>
            <xbrli:instant>2026-02-11</xbrli:instant>
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    <in-capmkt:NSESymbol contextRef="xbrli:stringItemType">BLKASHYAP</in-capmkt:NSESymbol>
    <in-capmkt:NameOfTheCompany contextRef="xbrli:stringItemType">B. L. Kashyap and Sons Limited</in-capmkt:NameOfTheCompany>
    <in-capmkt:SubjectOfAnnouncement contextRef="xbrli:stringItemType">Outcome of Board Meeting</in-capmkt:SubjectOfAnnouncement>
    <in-capmkt:DescriptionOfAnnouncement contextRef="xbrli:stringItemType">B. L. Kashyap and Sons Limited has submitted to the Exchange, the financial results for the quarter and period ended December 31, 2025.</in-capmkt:DescriptionOfAnnouncement>
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    <in-capmkt:DateAndTimeOfSubmission contextRef="xbrli:dateTimeItemType">2026-02-11 13:32:51</in-capmkt:DateAndTimeOfSubmission>
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    <in-capmkt:ResultPeriod contextRef="in-capmkt-types:ResultPeriod">Third Quarter</in-capmkt:ResultPeriod>
    <in-capmkt:ResultType contextRef="in-capmkt-types:ResultType">Standalone &amp; Consolidated</in-capmkt:ResultType>
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