Option 1 "1 and 2" states that the Government is promoting the use of the `Kisan Drone` for spraying weedicides and digitisation of land records. This statement is incorrect because it only mentions two out of the three activities mentioned in the question.

Option 2 "2 and 3" states that the Government is promoting the `Kisan Drone` for digitisation of land records and crop assessment. This statement is correct because it includes both the activities mentioned in the question.

Option 3 "1 only" states that the Government is promoting the `Kisan Drone` for spraying weedicides only. This statement is incorrect because it does not mention the other activities mentioned in the question.

Option 4 "3 only" states that the Government is promoting the `Kisan Drone` for crop assessment only. This statement is incorrect because it does not mention the other activities mentioned in the question.

Therefore, the correct answer is option 2, which states that the Government is promoting the `Kisan Drone` for digitisation of land records and crop assessment.