Dear Pranav, no engineering or Pharmacy or Architecture college shall directly allow seat allotment on 12th scores.

JEE Main is required for Architecture and Engineering.
There ar evarious otherexams like MHCET, COMEDK, KCET, AiEEE, JEE advanced which are required for building the desired career.

You can alternatively join Bsc course into Computer science which does not require any competiive exam and admissions are based on Class 12th scores solely.