Veena, let us first predict your expected rank based on the percentile secured in January JEE PAPER 2.

Now, to calculate your expected rank for B.Arch based on the percentile score that you have secured, you can use this formula:

So, (100 - your total percentile score) is the percentage of people ahead of you. Also, 112679 were the number of candidates who appeared for January exam.

Also,note that the ranks will change according to increase or decrease in the number of participants in the next session.

So rank formula is (100 - your total score) X 112679 /100.

Now, according to this formula, your expected rank is around 27009. Note that it is the expected All India Rank and not your category rank which is very difficult to predict at this point of time. As you may be knowing, the admission to any college also depends on your home state and category status and since you have not given those details, so I am answering your query in generic way . Now, In your case, your chances of getting best or even good government colleges for architecture are very small irrespective of your home state and gender. However, you can try for some state level colleges accepting JEE PAPER 2 scores for admission and also you could get some private institutes too for this score.

If you want to check the previous year cutoffs of some government colleges, you can visit this link

https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning

Not only that, you have another attempt to go where you can redeem yourself and increase your chances of getting desired colleges, so concentrate on that and prepare well.

Also, if you want to predict your colleges using your scores, you can use this college predictor