Nokia India — not providing requested mobile , forcing me to get replacement mobile worth less than my original mobile

I have submitted nokia 7 for service under warranty due to charging port issue . but nokia asking me collect replacement mobile thats worth less than original mobile . it was 150 days still i didn't get my mobile .

Due to parts unavailability for Nokia 7 Plus they decided to provide/replace Nokia 8.1 model, but 8.1 is not acceptable while comparing with 7+ .

as per price and specs nokia 7 plus is better than Nokia 8.1 .

i bought Nokia 7 plus for 24 thousand but Nokia 8.1 is 19 thousand, so its not acceptable and they saying its new mobile but there is no warranty with that how can i accept ?? if i am accepting today suppose with in a week new problem occur with that mobile, what can i do? if they providing new mobile there should be warranty for that .

https://gadgets.ndtv.com/mobiles/features/nokia-8-1-vs-nokia-7-plus-whats-new-and-different-in-the-nokia[protected]

https://www.gadgetsnow.com/compare-mobile-phones/Nokia-7-Plus-vs-Nokia-81

as a customer think don't want waste money .

if Nokia is possible replacement please provide Nokia 8.1 with (Blue, 6GB RAM, 128GB Storage) and warranty . if new it should be boxed and wrapped . but they giving only mobile device .

please make value for customer money