case under 420

I have been charged under 420 160 b... The case of 17000, i have already paid the amount and the original documents after returing the amount are with me only. The person have filed a fir with the photostate copy.... My bail is already rejected from lower court. I have applied a bail in high court. How much time does it take to get a bail from high court and what are chances to get a bail in interim or on date.