Delhivery — Lost parcel and didn't get refunded 1000

I booked a parcel on 31/07/2021 on delhivery website which i had to send it to Sriganganagar, Rajasthan to my aunt's home from Bihar Sharif, Bihar. On 02/08/2021 the courier guy came to pick up the order at 9:30am, i gave him the courier.
After 3 hour he called me and told me that he had lost the parcel. I was astonished to know that but couldnt do anything.
He said he that the company will give me only 100 rs as i had entered the amount of parcel 100rs.
But i put the amount 100rs because the box of 1.8kg contained home made chip whose cost i didn't knew which may be around rs800 when i calculated after i lost the parcel. There was dairy milk silk worth 80rs and two rakhi and one rakhi card. Because only knew the cost of dairy milk silk i put the amount 100.
And i paid 180rs for the courier charges.
Please tell me who will pay 180rs for 100 rs thing.
I paid 180 because it was worth 1000 or more but the company refuses to pay me and they didnt pick call to register complain or anything.
My Delhivery courier traking id is[protected]