Hi,

According to the reports, for getting a seat in colleges for non jrf candidates for horticulture courses , A general category student needs to score more than 400 marks and above. For a OBC category student enough to score more than 380. As your score is 270 you have extremely low chances of getting any college  through ICAR. Hoping for the best. For more information refer to

https://university.careers360.com/articles/icar-aieea-application-form