25month old- doesn't speak. Of asd!

My son is 25months old... Doesn't speak a single word... Use to speak baba papa dada kaka when he turned 10months old... But somehow stopped it altogether .. starts speaking papa iin between but then stops completely... He gets all his work done by holding our finger ... Doesn't respond to his name... Plays by himself... He was born in June 2019... was hitting all his milestones on time as per my understanding .. started walking by 10-11months... started speaking also but stopped... Now just makes noises .. laughs ... Makes eye contact when we sing his rhymes.. loves cuddles...used to mingle with other PPL earlier... but now doesn't play much with other children... Plz advise is it speech delay owing to pandemic  or early signs of asd