Why Price data prior to 24th November 2020 is not available for BOROLTD on Zerodha Kite Web?

The Price data prior to 24th November 2020 is not available for NSE:BOROLTD on Zerodha Kite Web. Why is it so?

But for BSE:BOROLTD the data is available since 22nd July 2020 till today.

Is this due recent merger?