Wash the lemons properly. Put them in a saucepan with enough water.
Cover the pan and put it on medium heat.
Let the whole lemons simmer in the water till soft and done. This takes about 10 -15 minutes.
Remove the lemons from the water and let them cool down a bit. Don't throw away the water. Read the tip below on how to use this aromatic water.
Cut the lemon into wedges and remove the seeds. Cut off the thick white pith at the top. Sometimes it is easier to snip off the white pith with a pair of scissors.
Put the chopped lemon along with the sugar in a food processor and process to a coarse paste.
Heat oil on a pan over low heat. Make sure the oil is not too hot. It will burn the spices.
Add red chilli powders and turmeric powder.
Immediately add the pureed lemon.
Mix well. Take the pan off the heat.
Add salt, coriander and fennel powders.
Mix well.
Serve the chutney with parathas, dosa, cheela, as a sandwich spread or with any snack.
Store the chutney in an airtight jar and in the fridge.