Class 12
You can take Admission in any of Graduation Degree from a recognized University. and Also Join the IAS Coaching Institute for Full IAS Course Including Optional Subjects (Three Years for 12th Pass Students).
check the Fee Structure of IAS coaching institute: https://www.classiciasacademy.com/feestructure.php
Yes you're eligible for BMS course in these colleges. Sindhi quota cut off is 6-7% less than the actual cut off. It depends what the yearly cut off is. But you should try in these colleges. You must have the sindhi affidavit to show while the process of admission.
All
Usually the questions from additional exercises doesn't come in boards but as its strictly in the rules that you have to practise NCERT thoroughly so I will suggest that practise the additional exercises also to be on the safe side.... If question comes by chance then you cannot deny it
The Question containing Inaapropriate or Abusive Words
Question lacks the basic details making it difficult to answer
Topic Tagged to the Question are not relevant to Question
Question drives traffic to external sites for promotional or commercial purposes
The Question is not relevant to User
And never miss an important update