As per the info, 2nd June is the last date. so yeah! You can pay it. But I would request that you should try to pay it atleast a day before because you know there are sometimes server problems occurs in the website as well as sometimes we face problem in banking. So to be safe try to pay in such as moment that you should have some time.

To know more about SRM visit the link provided below:

https://engineering.careers360.com/articles/srmjeee-counselling

I hope you got my point. All the very best for your future endeavors!