This is a common issue on the Income Tax Portal, often related to Java, browser compatibility, or outdated DSC drivers. Here are a few steps you can try:
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Ensure you're using Google Chrome or Microsoft Edge (latest version).
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Install the emSigner utility from the Income Tax website and make sure it’s running.
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Check that your DSC token driver is updated (based on your DSC provider – eMudhra, VSign, etc.).
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Restart your system and run the portal in Incognito mode.
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Clear browser cache and retry.
Also, if you're working on multiple 15CB filings, you can use our Excel-based utility to prepare XML in bulk, which helps avoid delays and minimizes portal errors at filing time.
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Supports bulk XML generation for 15CA & 15CB
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Compatible with all parts (A, B, C, D, CB)
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Saves time and reduces manual entry mistakes
Download here: https://xltool.in/15ca-15cb/