The correct option is 4, which means only option 3 is correct. Let`s dissect each option:

1. Ross Island : Shaheed Dweep - This option is incorrect. Ross Island is located in the Andaman and Nicobar Islands, but its new name is not Shaheed Dweep. The new name of Ross Island is actually Netaji Subhas Chandra Bose Island.

2. Neil Island : Netaji Subhas Chandra Bose Dweep - This option is incorrect. Although Neil Island is located in the Andaman and Nicobar Islands, its new name is not Netaji Subhas Chandra Bose Dweep. The new name of Neil Island is actually Shaheed Dweep.

3. Havelock Island : Swaraj Dweep - This option is correct. Havelock Island, which is also located in the Andaman and Nicobar Islands, has been renamed to Swaraj Dweep.

Therefore, only option 3, which states that Havelock Island is now called Swaraj Dweep, is the correct answer.

Alert - correct answer should be option 3: 1 and 2 only.