Measure exactly ½ cup of seedless tamarind and ¼ cup of seedless dates and transfer to a bowl.
Add 1¼ cup of hot water to tamarind and dates mixture and let it soak for 2 hours till they become soft. If you are in a hurry, soak at least for 1 hour.
Now blend this soaked tamarind and dates mixture along with the water in which it was soaked. Blend this to a fine paste.
Now use a sieve and filter the paste. At this stage add around ¾ cup of water to strain out the tamarind and dates pulp completely.
The pulp must be of flowing consistency. So in all we have used 2 cups of water to achieve this consistency (1¼ cup for soaking and ¾ at the time of straining the pulp)
All the impurities must be left behind in the strainer like this. Discard this.
In a kadai or pan, heat 2 teaspoon of oil and add 1 teaspoon jeera and ¼ tsp asafoetida.
Once the cumin seeds crackle, add the tamarind and dates pulp. Bring this to a gentle boil (should take around 5 to 6 minutes)
In the meanwhile measure 1 cup of grated jaggery and ¼ cup of sugar.
Now add the jaggery and sugar to the kadai and cook further for 7 to 8 minutes.
Once the mixture comes to a good boil, add all the spices listed above (except melon seeds and citric acid). Cook the mixture on medium flame for another 6 to 7 minutes till it starts becoming slightly thick.
Add the melon seeds to the mixture and cook further for a minute.
The chutney is ready once the mixture starts coating the back of spoon and it must look like a sauce type consistency. Do not cook further.
Finally add ¼ teaspoon citric acid and turn off the stove.
Bring the chutney to room temperature and store in an air tight glass jar in refrigerator.