Which of the following pairs of addresses are identical?
1. Mr . Arun, 54/B Lake View, Bhopal, 462016
2. Mr Arun, 54-B, Lake View, Bhopal - 462016
3. Mr . Arun, 54/B Lakeview, Bhopal, 462016
4. Mr . Arjun, 54/B Lake View, Bhopal, 462016

The correct option is 1 and 2.

Let us analyze the given address pairs carefully to determine which ones are identical or represent the exact same address format/details.

1. Address 1: Mr . Arun, 54/B Lake View, Bhopal, 462016
2. Address 2: Mr Arun, 54-B, Lake View, Bhopal - 462016
3. Address 3: Mr . Arun, 54/B Lakeview, Bhopal, 462016
4. Address 4: Mr . Arjun, 54/B Lake View, Bhopal, 462016

Comparing Address 1 and Address 2:
- Name: Mr. Arun / Mr Arun (Identical name)
- House/Plot No: 54/B / 54-B (Identical unit number)
- Street/Locality: Lake View (Identical locality)
- City & Pincode: Bhopal, 462016 / Bhopal - 462016 (Identical location details)

Therefore, addresses 1 and 2 correspond to each other as identical addresses.