furtive

marked by quiet and caution and secrecy; taking pains to avoid being observed; "a furtive manner"; "a sneak attack"; "stealthy footsteps"; "a surreptitious glance at his watch"

जब सिस्टम सहसा विफल हो जाता है तब "गुरू मेडिटेशन #XXXXXXXX. YYYYYYYY '' के रूप में एक गुप्त संदेश प्रदर्शित होता है जो सिस्टम की समस्या का संकेत है।

Chanakya planned his work in a furtive manner.