I am in the process of renewing pr card and need some basic idea to avoid secondary review? any suggestions...
There is no generic answer to a question like this.
There are some more or less apparent risk indicators, things which elevate the risk of Secondary Review. Avoiding those will reduce the risk of SR.
But beyond the obvious, that is the PR who is and has been well-settled in Canada for years, and thus who easily meets the PR Residency Obligation by a margin of a year plus, who has been fully employed by a readily identified Canadian employer, it is difficult if not impossible to describe who is likely to smoothly sail through the PR card application process.
Otherwise, it appears that reasons to question compliance with the PR Residency Obligation are among the more common triggers for SR, but other factors in the immigrant's situation and
history (including original application for PR) can trigger SR.
Cutting-it-close is the most obvious high risk factor. Indications of not having permanently settled in Canada is another more or less obvious risk indicator.
How this goes is more about who the individual is and that individual's history. The factors that make the most difference are not easily manipulated or fixed. You are who you are. Your history is what it is. The rest is mere detail. Which is not to minimize how important the details are, but how the details fit into the overall picture of who you are and what your history has been will be what matters most.
I recognize there are more than a few PRs who are hanging onto PR status without fully settling, permanently settling, in Canada, relying on how liberal the two years in five PR RO is. And that many such PRs expect or at least hope to avoid problems in renewing their PR cards based on the fact they have met the
technical requirements. As if the fact that their situation and lifestyle is inconsistent with the purpose of PR status is of no import. Not the way it works. Those who are not fully and permanently settled in Canada, for a number of years, are simply at higher risk for SR, for being scrutinized more thoroughly, more skeptically.
Edit to add the obvious: minimize errors in the application and follow the instructions. Many sneer at such reminders as banal or condescending. Many more, however, fail to follow the instructions or make unforced errors, leading to problems. All of us need this reminder.