Hello Jaya,
The maximum and minimum closing ranks are different for different categories. Its also also depend on whether you belong to Delhi region or you are out of Delhi candidate. and also its different for different branch
so to answer your question you can go through the following link
https://ipu.admissions.nic.in/ipuadmiss/Page/Page?PageId=5&LangId=P
It will help you a lot.
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