In case of scarcity of time priortise chapters:
1.Go for amendments thoroughly
2.vouching verification,don't try to mug up. Try understanding them.while studying just try to project yourself as a auditor doing audit.
Eh.Like school audit : what all prospective areas are where auditing is req.
There are two basic heads Income & Exp to be audited.
3. CAG audit
These you should do necessarily.
For SA's if ample time is not left try reading out Practice manual