Wash and soak dates in a 1 cup of warm water for 30 minutes. Then remove seeds and grind dates (use same water in which dates are soaked) into a smooth puree.
In a nonstick pan add grated jaggery with dates puree and mix till jaggery is completely dissolved.

Then add all spices and mix gently.
Cook the chutney on low flame till to right and little thick consistency on low flame.
Switch off the gas and add roasted pumpkin seeds, melon seeds. Mix them well.
Keep aside prepared chutney to cool down completely and then store in a glass jar.

Tips :

This stays good in the fridge for 6 months.
You can have the consistency of the sweet chutney as per your choice. Simply alter the amount of water and make the chutney thin or thick as per your requirements.
Adjust the amount of jaggery according to your taste.
Don’t overcook chutney. It will be thick when cools down.