Which of the following pairs are exactly the same?
1. Dr . Neha Jain, 21 Park Street, Jaipur-302001
2. Dr . Neha Jain, 21 Park Street, Jaipur-302001
3. Dr . Neha Jain, 21 Park St., Jaipur, 302001
4. Dr . Neha Jaiswal, 21 Park Street, Jaipur, 302001

Correct Answer: Option 1 and 2

To determine which pairs are exactly identical, let us carefully compare each given line step-by-step:

Line 1: Dr . Neha Jain, 21 Park Street, Jaipur-302001
Line 2: Dr . Neha Jain, 21 Park Street, Jaipur-302001
Line 3: Dr . Neha Jain, 21 Park St., Jaipur, 302001
Line 4: Dr . Neha Jaiswal, 21 Park Street, Jaipur, 302001

Step-by-step Comparison:

1. Comparing Line 1 and Line 2:
Line 1: "Dr . Neha Jain, 21 Park Street, Jaipur-302001"
Line 2: "Dr . Neha Jain, 21 Park Street, Jaipur-302001"
Every character, space, spelling, punctuation mark, and number in Line 1 matches Line 2 exactly.

2. Comparing Line 1/2 and Line 3:
Line 3 uses "Park St." instead of "Park Street" and has a comma before the pin code ("Jaipur, 302001") instead of a hyphen ("Jaipur-302001"). Therefore, Line 3 is not identical to Line 1 or 2.

3. Comparing Line 4:
Line 4 has the surname "Jaiswal" instead of "Jain". Thus, it is not identical to any of the other lines.

Conclusion:
Only 1 and 2 are completely identical in every detail.