Hello,

There is no official announcement made yet regarding the exact release date of  BStat application form of ISI, though it's being expected that by May, 2020 it may get released at the official website at isical.ac.in (http://isical.ac.in) ,

the eligibility criteria for BStat is passed 10+2 from a recognized board with physics and mathematics, there is no upper age limit regarding this,

the entrance test will be conducted in two session, in the forenoon session there will be a total of 30 MCQs, and while afternoon session will have descriptive paper, both will consists of Maths only,

now coming to your question on how to fill the exam form, as I mentioned once it gets released at the official website at https://www.isical.ac.in/,

you will required to fill in the essential details , and thereby create your account,

after successful registration, you have to fill in the important details, and upload photograph and signature in prescribed format,

thereafter pay the requisite fee through debit card/credit card or internet banking whatever mode is applicable,

take a print out of the application form for future references,

visit our page at https://www.careers360.com/exams/isi-admission-test to know more details regarding this,

Further, candidates shortlisted on the basis of their entrance scores will be called for interview for the further process of admission along with relevant documents,