Answer 1

G'day Gudapelly Shrihari what have you tried? Do you have some code for this problem?

Have you been progressing through the C course, are you up to nesting for(;;) loops?

PS: Does your last line have some missing asterisks? Do you want:
1 followed by 10 asterisk
2 2 with 9 asterisks
3 3 3 with 8 asterisk
4 4 4 4 with 7 etc etc?