CUET Scores

With a score of 341 in CUET and PCM subjects, you may no longer qualify for the top central universities but you still have options in mid-tier or regional universities. For instance, Central University of Andhra Pradesh, Central Tribal University or given few state government universities in Assam, Rajasthan and Jharkhand may accept your score for any Science based or general programs. Private universities accepting CUET also provide good options with scholarship. Do note to check for spot round during such period or open merit lists. You must also keep in mind your category and subject combinations etc. 

If you do not mind location or course options, you can still get good seat offerings and create a solid academic trajectory. 

Admission to top government institutions is difficult, as you already know, with 302 marks in CUET general category, mostly colleges in CUET want scores in the range of 450 or above. However, it's possible to secure a seat in newer or less competitive central and state universities, especially ones that are regional campuses. My recommendation is to keep checking back for spot rounds and open merit lists. You can check out some private universities that accept CUET scorecards and gives out scholarship as well. You should also think about alternative options like applying for other skill-based/vocational courses as a backup. If all things fail, you can take a gap year, work your way through preparation and perhaps, take CUET again next year and get a better score. you'll see that many students succeed that way.