Boil milk up to bubbles
Then switch off the gas and add vinegar to it and let the milk split
Once split drain the chhena and hang for 15 mins
Peel and cube mango and make puree
After 15 mins bring the chhena and mash with help of the heel of your palm
Slowly it will gather as a dough and it become oily
Add sugar powder and mash again
In this process sugar will melt in paneer and it will watery and messy but don t worry
In a non stick pan add ghee
Add the paneer and sugar mixture and mango puree
Cook on a low flame up to it becomes a dough
Remove from pan and keep aside to cool down
When it cools down mash again properly
Then shape the Sandesh and place on decorative paper
Garnish with chocolate chip
One can use almond or pistachios for garnishing