If you have been paying those SIP installments over a period of time, chances are that at some point, you would have asked yourself whether you should discontinue the payments.
The desire to pull out may be because the market has been on a downward trajectory and your investments have been losing value, or that the fund manager is not able to match the kind of returns that peer funds are giving.
Well, these may not always be good enough reasons to stop your SIP.