Question

What was the noise that startled Mridu and frightened Mahendran?

NCERT Class 7th Honeycomb Ch 2 A Gift of Chappals

Answer 1

It's an unusual sound, a 'kreech' played through violin that lalli was learning to play.

Answer 2

The noise was an abnormal "kreech" which has startled Mridu and sacred Mahendran.
It were the efforts of Lalli learning to play Violin.

Cheers!