Can I get admission to BTech at Lucknow University through CUET UG?

No, Panache Academy does not accept CUET scores for admission. The admission to the various courses offered at the academy are based on merit of the last qualifying exam, i.e. Class 12 and graduation. Candidates who have already appeared in CUET and have a exceptional score, might be preferred and acknowledged, but CUET is not included in the selection criteria. 

Minimum CUET cutt off for Delhi University is 400+

You can also use Shiskha college predictor -

https://www.shiksha.com/college-predictor

You can try for some low rank colleges under some quota sets like sports (if available).

Also you can explore about -

• Next CUET (1 year good preparation)
• Jamia CET
• BA LL.B
• BBA LL.B
• IIMs intregated MBA 
• M.A foreign language ( Top 5 )
• UGC NET 
• Teaching as a carrer

No. you will not get admission 

With 295 marks, it's very unlikely to get in anywhere in DU for B.Sc Zoology under the general category. You're well below the cutoff thresholds (which is between 396-520) even for less competitive colleges. So, You'll need to explore other universities or courses for a better shot.

Yes, you can get B.Com (Hons.) admission in top Central Universities through CUET. Apply to Delhi University, BHU, AMU, or Jamia Millia. These universities offer excellent faculty, campus life, and good career opportunities in commerce.