if I get 390 and above in BITSAT 2020 , will I be able to get admission in bits Pilani Goa since I've got 62% in PCM for Goa board of hssc 2020?
Your score of 390 in BITSAT is very good. But to be eligible for admission into BITS Pilani, a candidate must have secured atleast 75% aggregate in PCM with minimum of 60% in each of the subjects of PCM. Since your aggregate percentage in PCM is lower than the required aggregate, you won't be able to get admission into BITS Pilani.
Hope it helps