Consider the following pairs:

Wetland/Lake	Location
1. Hokera Wetland	Punjab
2. Renuka Wetland	Himachal Pradesh
3. Rudrasagar Lake	Tripura
4. Sasthamkotta Lake	Tamil Nadu

How many pairs given above are correctly matched?

The correct option is Only two pairs.

Let us analyze each pair individually to determine if they are correctly matched:

1. Hokera Wetland - Punjab (Incorrectly Matched)
Hokera Wetland (also known as Hokersar) is located in the Union Territory of Jammu and Kashmir, not in Punjab. It is a natural perennial wetland contiguous to the Jhelum basin and is designated as a Ramsar site.

2. Renuka Wetland - Himachal Pradesh (Correctly Matched)
Renuka Wetland is located in the Sirmaur district of Himachal Pradesh. It is a natural wetland with freshwater springs and inland subterranean karst formations, and it is the largest lake in Himachal Pradesh.

3. Rudrasagar Lake - Tripura (Correctly Matched)
Rudrasagar Lake, also known as Rudijala, is located in the Melaghar block of Tripura. It is a lowland sedimentation reservoir fed by three perennial streams discharging to the River Gomati, and it is a designated Ramsar site.

4. Sasthamkotta Lake - Tamil Nadu (Incorrectly Matched)
Sasthamkotta Lake (or Sasthamcotta Lake) is the largest freshwater lake in Kerala, located in the Kollam district, not in Tamil Nadu. It is also designated as a Ramsar site.

Out of the four pairs, only Pair 2 (Renuka Wetland - Himachal Pradesh) and Pair 3 (Rudrasagar Lake - Tripura) are correctly matched. Therefore, exactly two pairs are correct.