$C_{\ell}$ vs $\ell$ plots (before and after point source subtraction in red and green line respectively)

Figure: This figures show estimated angular power spectra $C_{\ell}$ with $1\sigma$ error bars using TGSS which covers a large fraction ($90 \%$) of the total sky in the declination range $\delta >-55^{\circ}$. Here, we show the results for both before and after subtracting the point sources from the calibrated visibility data in red and green line respectively. We have removed all fields which are dominated by the system noise or have strong RFI. Finally, out of the $5336$ TGSS fields we present results for $3893$ fields which we expect to be dominated by the sky signal.