Hello Aspirant,

There are a lot of expensive books that come in B.pharmacy.I searched all but i dint found any of specific price of 20k but i got a close one to that it might be that you were finding.Check the link below

https://www.flipkart.com/anti-inflammatory-drug-discovery/p/itmdbpcnuapk5tsg?pid=9781849734134&start_url=BrowserLaunch_AMP&srno=b_33

I hope this helps.