SSC MTS 6 Aug 2019 Shift 1 Paper

Option 4 is the right answer.
The sentence is a suggestion which can be a positive or a negative one. Such sentences are usually in the present tense.
Option 1 and 3 use the past tense ('had') and the phrases are grammatically incorrect.
Option 2 indicates an obligation/ expectation : For example, should have been on time.
Option 4 is the short form of 'should not have', which is grammatically correct
Correct sentence : He shouldn't have done it.