Hello aspirant, 

B. Tech fee of Lucknow University is around 60,000 rupees. You can check it at the official website by downloading the pdf (page number 16). Use the link given below to download the fee structure 

https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.lkouniv.ac.in/site/writereaddata/UploadNews/corrigendum/pdf/C_201812081102160693.pdf&ved=2ahUKEwiFzLmmpcvjAhUKRY8KHYSVBAsQFjABegQIAhAB&usg=AOvVaw3bb1ufR0yT2E4IDNAiovPT

Hope it helps.