The correct match of the monuments and rulers is as follows:

1. Agra Fort - Sher Shah

2. Taj Mahal - Shahjahan

3. Purana Quila - Akbar

Option 1 is incorrect because it states that Agra Fort was built by Sher Shah, which is incorrect. Agra Fort was actually built by Akbar the Great.

Option 2 is the correct answer as it matches the monuments with the correct rulers.

Option 3 is incorrect because it states that Agra Fort was built by Shahjahan, which is incorrect. Again, Agra Fort was built by Akbar.

Option 4 is incorrect because it states that Agra Fort was built by Shahjahan, which is incorrect. We have already established that Agra Fort was built by Akbar.

Therefore, the correct match is option 2.