Hello aspirant,
The answer of your first question that is BITSAT can held in hindi is no. BITSAT is a engineering entrance exam of 450 marks with sections physics, chemistry, mathematics and English proficiency and all the sections questions are compulsory in English.No any other language even though Hindi is allowed in BITSAT. The questions in BITSAT are MCQ type questions with 4 options and negative marking is there for wrong answers.
Total fees changes from branch to branch and campus by campus. But generally the tuition fee for all campuses for a single semester is 1,78,000 and the admission fees are 39,000 Rs. If you want to register for summer term then you have to pay 62300 Rs.
So the total fees with taking all the facilities like summer term, hostel fees,mess and electricity for 4 years is upto 40 lacks.
Also some scholarships are available for first few students from the organization which is given on the official page whose link is shared below.
For other details of fees you may go through the official link of BITS Pilani that I have given below.
https://www.bitsadmission.com/fdfee201920.aspx
Also you may go with below link in which all information about BITSAT exam is given
https://www.careers360.com/exams/bitsat
Best of luck for your career.
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