Question

when we reached Kathmandu we discover that controversy ( rewrite using sooner than by removing when)​

Answer 1

Explanation:

no sooner than we reached kathmandu we discover that controversy

Answer 2

'No sooner' did we reach 'Kathmandu' than we discovered that a 'controversy had arisen'.

EXPLANATION:

• The expression ‘no sooner…than’ is used to imply that one situation/action takes place/took place instantly after another situation/action, If we tell that no sooner has one thing , than another thing ensues, we mean that the second thing occurs instantaneously after the first thing.
• When 'no sooner comes at the start of a sentence', we generally 'use inverted word order'. That implies the auxiliary verb comes prior to the subject. The structure 'no sooner than' is relatively literary. It is not usually 'applied while speaking'.