COS H4 to F1 having travel plans to India


I entered into the US on H4 visa in 2013, later I joined a good school for MS and changed my status to F1. I had been studying on F1 visa since 1.5 years and I will be graduating on May 2016. I have travel plans to India during March 2016. I will be eligible from my OPT in May 2016. I am in dilemma about my travel plans

  • Is it safe to get my F1 visa stamped in India now ( before 3 months left for graduation) OR

  • is it safe to travel any time during OPT and get F1 visa stamped

Which alternative is best considering my situation. help please