Translate the following passage into Bangla.

The detective left no stone upturned to find out the culprit.

Write short-notes on the following:

Globalization

Write short-notes on the following:

Under Invoicing

Write short-notes on the following:

Free Market Economy

Write short-notes on the following:

Back to Back Letter of Credit

Fill in the Blanks with appropriate preposition :

She was absent ___the meeting