Liked the layers formed by the far off hills. Lovely sky to go with. For my taste, I might crop few about 6mm from the top & if possible add a few pixels to the bottom.

Conversion to B&W is an interesting challege Pramod. I think the difficult tonal ranges to handle I guess in channel mixer is grey since RGB components will be similar - not much room for separation. Further sunrises in our part of th world can be difficult to handle in channel mixes for better separation since the total ranges extends from orange to blue. May be playing with green channel will help in these cases ? For all you know I may not be making sense here - still learning to get a hold on this process..

Very interesting. I just realised that I had never seen a sunset/sunrise image in black and white before this one!