What does this mean : re judicial rullings

Any feedback please.

Regards,

It per se does not means that judgement was passed by CIT(A)

It only means that it was CIT who filed the case (simple terms) , It could also be a case where CIT appeals against its own order [errorneous order passed by CIT and noticed by CCIT] on behalf of Chief CIT [CCIT] 

183 Taxman 291 Delhi

183 is the series of journal like this one is from 183th series and you can find this judgement on page 291 of the said journal

Delhi here is the territory where the judgement was passed

This case is of Delhi High Court

Also note that judgements of ITAT can also be same, so when I write say Delhi in last it could mean that this judgement was passed either by ITAT or by High Court. To remove this problem most judgement specifically write the word ITAT before the name of the territory

like the case xXXXXXXX (ITAT) Mum

Calibrated Healthcare Systems India Pvt. Ltd vs. ACIT (ITAT Delhi)

[2013] 142 ITD 21 (DEL) (SB) [23/01/2013]

Here the judgement has been passed by Special Bench