The schemes called Gram Suraksha, Gram Suvidha, Gram Santosh, Gram Sumangal, and Gram Priya are plans introduced by Rural Postal Life Insurance. Option 1, which states that these schemes are plans introduced by Rural Postal Life Insurance, is the correct answer.

Option 2 suggests that these schemes are part of the Grameen Sanchar Sewak Schemes. However, there is no information or evidence provided to support this statement. Therefore, option 2 can be considered incorrect.

Option 3 suggests that these schemes are the United Nations` Habitat and Human Settlement Schemes for rural India. However, there is no mention or connection between these schemes and the United Nations` Habitat and Human Settlement Schemes. Therefore, option 3 can be considered incorrect.

Option 4 suggests that these schemes are poverty alleviation and employment generation programs sponsored by the Government of India. However, there is no information provided to support this claim. Therefore, option 4 can be considered incorrect.

In conclusion, the correct answer is option 1. These schemes are plans introduced by Rural Postal Life Insurance.