What is limited scrutiny?
In case of assessment two type of cases have been selected for scrutiny: one is 'Limited Scrutiny' and other is 'Complete Scrutiny'. 

The assessees concerned have duly been intimated about their cases falling either in 'Limited Scrutiny' or 'Complete Scrutiny' through notices issued under section 143(2) of the Income-tax Act, 1961 ('Act'). The procedure for handling 'Limited Scrutiny' cases shall be as under:
a. In 'Limited Scrutiny' cases, the reasons/issues shall be forthwith communicated to the assessee concerned.
b.   The Questionnaire under section 142(1) of the Act in 'Limited Scrutiny' cases shall remain confined only to the specific reasons/issues for which case has been picked up for scrutiny. Further, the scope of enquiry shall be restricted to the 'Limited Scrutiny' issues. 
c. These cases shall be completed expeditiously in a limited number of hearings.
d.   During the course of assessment proceedings in 'limited Scrutiny' cases, if it comes to the notice of the Assessing Officer that there is potential escapement of income exceeding Rs. five lakhs (for metro charges, the monetary limit shall be Rs. ten lakhs) requiring substantial verification on any other issue(s), then, the case may be taken up for 'Complete Scrutiny' with the approval of the Pr. CIT/CIT concerned. However, such an approval shall be accorded by the Pr. CIT/CIT in writing after being satisfied about merits of the issue(s) necessitating 'Complete Scrutiny' in that particular case.