On the right track: सही रास्ते पर (in progress toward the desired result)
On the wrong track: गलत रास्ते पर (misdirected)
Get (back) on track: पुनः ध्यान केंद्रित करना (resume focus)
Get off track: मुद्दे से भटक जाना (lose focus)
Fast track: शीघ्रपथ (a quick way to accomplish or manage something)