निम्नलिखित में से कौन सा लिखत (Instrument) पृष्ठांकन (Endorsement) और सुपुर्दगी द्वारा एक व्यक्ति से दूसरे व्यक्ति को स्वतंत्र रूप से हस्तांतरित नहीं किया जा सकता है?

Which of the following banking instruments is commonly referred to as a 'Banker's Cheque'?

What is the validity period of cheques and bank drafts from the date of their issue?

According to RBI guidelines, what is the validity period of cheques and bank drafts from the date of issue?