Hello Lahari,
There is no cutoff for English marks from your 12th boards in BITS examination. It is only stated that you must have Proficiency in English language to be able to solve the logical reasoning and English language question in the BITS exam. You need to  have a basic understanding of English to be able to understand and solve the problems in BITS exam. You need to have a aggregate of 75% in PCM/PCB in your 12th boards to qualify for BITS exam.
To know more about which college to join try our new college predictor link below :
https://engineering.careers360.com/jee-main-college-predictor

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