2026 GS Paper I, all questions

UPSC Prelims 2026 · GS Paper I

Question 79: Science and Technology

Which of the following statements about DHRUV64 is/are correct ?

  1. 1.It is the third chip fabricated under the DIR-V Programme with an overall aim to enable the creation of microprocessors for India.
  2. 2.It is India's first homegrown 1·0 GHz, 64-bit dual-core microprocessor.

Select the answer using the code given below :

a1 only
b2 only
cBoth 1 and 2
dNeither 1 nor 2

AnswerUPSC’s answer is (c).

DHRUV64 is a 64-bit, dual-core, 1.0 GHz microprocessor developed by C-DAC under the Digital India RISC-V (DIR-V) Programme, which aims to create indigenous microprocessors for India. It is India's first homegrown 1.0 GHz, 64-bit dual-core microprocessor and the third chip fabricated under the DIR-V Programme. Both statements are correct.

  • 1. It is the third chip under the DIR-V Programme.
  • 2. It is India's first homegrown 1.0 GHz, 64-bit dual-core microprocessor.

How you could have got this

  1. If you were sure statement 1 is correct, (b) and (d) go: each of them leaves 1 out.

    What you needed to know: It is the third chip under the DIR-V Programme.

  2. Then, if you were sure statement 2 is correct, (a) goes: it leaves 2 out.

    What you needed to know: It is India's first homegrown 1.0 GHz, 64-bit dual-core microprocessor.

Only (c) is left. This one needs every statement.

This follows UPSC’s provisional key; the final key could change it.

Which options go is worked out from UPSC’s key and the options, not by a model.

Why each option is right or wrong
  • (a) Incomplete: statement 2 is also correct.
  • (b) Incomplete: statement 1 is also correct.
  • (c) Right: both statements are correct.
  • (d) Wrong: both statements are correct.

Only the provisional key (27 May 2026) was found; the final key replaces it when found.

Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.

Source: UPSC, Civil Services (Preliminary) Examination 2026, General Studies Paper I, Series A. The paper on upsc.gov.in.