Can I apply for AIQ for neet with score 342 under ews category.? Will it be worthy. Plz guide me

Hello,
I'm sorry to say this but with these marks, even in the EWS quota, you will not be able to secure a seat in a government college through the All India Quota. This is so as only 15% of the total seats in every government college in India come  under the AIQ, so since the competition for those seats is so high and the seats are so less, the cut offs for those seats are very high and usually go above 600 for the general category. Since the EWS quota was introduced this year, I can't exactly say what will be the cut off for EWS but it won't be lesser than 450-500, than much I can guarantee. Also, this year's paper was very easy, so cut offs are going to go higher for every category.
You can apply for Private colleges, as with these marks, you will definitely get a decent Private college.
Thank you and best of luck :)