With your background, you would be better off studying petroleum engineering or geological engineering in India than production management in Poland. Engineers in those fields are in great demand, and earn very high wages.
If you want to get a management degree, get it from an excellent program at an excellent university. As far as I know, none of the management programs taught in English at Polish universities qualifies as top-notch. A degree from a good Indian university would be just as good, if not better.
If you're really serious about getting a worthwhile management degree, try a top university in the States or the UK. A degree in production management from CIT, MIT or Imperial College, for example, is going to open a lot more doors than one from an English-language program at the University of Wrocław.
Why do you want to study in Poland, of all places?
You got pre acceptance, shortly you will get acceptance (everybody gets it, don't worry). Then you apply for VISA with all the documents which includes acceptance, insurance, your proof of income to support your stay etc. Once you get the VISA, you have to plan your travel so that you reach here to attend the Introduction Days.
Cannot agree more with DominicB, a friend of mine studied in the same course in the same university. The degree doesn't qualify well for jobs in India compared to the one from US or UK. I am pretty sure your choice for Poland is because of cheaper tuition fees as well as the cost of living compared to other European countries. If you just want a degree, you are welcome. But if you want to apply for work with that degree, it is difficult. Polish language is a must and companies here prefer your skills in the language as well your experience (Very few companies who actually look into your educational background - now again that depends). With Production Management, you will be mostly be working in shop floor/production area/technologist/quality where the interaction with the workers is a must (you cannot avoid that). My suggestion is try to learn the language well, work for few years (if you have experience, well and good) and then apply. Are you taking a loan or sponsoring on your own ?