its been a while since i have been here, kapil chandna adv, you seem very fimiliar, have we met each other ever? well, i dont blame you for not remembering me...but still a very fimilar face. mitesh joshi,
my boss, Senior Advocate Mr. K.K.Manan (google him if you like) always tells his clients, "if you loose a civil case you can go back home, whereas if you loose a criminal case, you go to jail! this is your life, dont try to experiment on your own. once the case is ruined, no one will be able to help you. now, the answer to your question.
kapil is correct, but my view differs a little bit
482 crpc, should be exercised after you have exhuasted all your remedies in trial court, there is no hard and fast rule as such, there is no bar under 482 as such (other may not agree with this but as i said, its my view), so, you are correct in proceeding for discharge, but as kapil said " allegations, statements and other documents available on record will be considered at the time of framing charge" court cannot appreciate new evidence, therefore, if you have seen the chargesheet, you will come to know if prima facie case is made out against you or not, if the case is so, your chances are dim.
indiankanoon.com has a number of judgement, just put in the section and start reading. plz, remember, you have one life, its not worth experimenting on. best of luck, take care.