Are the sentences correct.

[rajan]

This is to inform you that I lost my passbook. You are requested to issue a new passbook. The indemnity bond, required by you, is enclosed herewith.

After having issued the passbook, please handover the same to Mr. X, whose signature is mentioned below.

[rajan]

Please help on this.

This is to inform you that I lost my passbook. You are requested to issue a new passbook. The indemnity bond, required by you, is enclosed herewith.
After having issued the passbook, please handover the same to Mr. X, whose signature is mentioned below.

[Tdol]

This is to inform you that I have lost my passbook. I am, therefore, requesting the issue a new passbook. The indemnity bond, required by you, is enclosed herewith.

After having issued the passbook, I would be grateful if you could deliver it to Mr. X, whose signature is below.