SAUBHAGYA is a Central Government scheme that aims to achieve universal household electrification in the country. Option 1, providing cash money to women giving birth to a single female child, is unrelated to SAUBHAGYA. This scheme is focused on providing electricity to every household in the country rather than cash incentives for child birth.

Option 2, connecting the kitchen of every household with piped cooking gas, is also unrelated to SAUBHAGYA. This option refers to the Pradhan Mantri Ujjwala Yojana (PMUY) which aims to provide clean cooking fuel to poor households.

Option 3, strengthening and augmenting infrastructure for piped water supply, is also incorrect as it pertains to a different scheme called the Jal Jeevan Mission, aimed at providing piped water supply to every household.

Therefore, the correct answer is option 4 - achieving universal household electrification in the country.