In 2026 expect a technical round that ties your branch (petroleum, mechanical, chemical, or geoscience) to drilling and production (fluid mechanics, reservoir concepts, equipment), and an HR round that directly probes willingness for offshore, Assam, or remote-site postings in the early years. ONGC's work is field-heavy, so interviewers reward candidates who connect theory to upstream operations and have genuinely thought through the posting reality rather than giving a reflexive yes. Revise your core subjects with a drilling-and-production lens and prepare a candid answer on remote and offshore work.
01
Shortlisting via exam score and eligibility
02
Technical interview on branch fundamentals and upstream operations
03
HR interview on motivation and posting flexibility
04
Medical and offer, then Graduate Trainee onboarding
What to expect in each round
01
Round 1 (20-30 min)
technical interview on branch fundamentals tied to drilling and production.
02
Round 2 (15-25 min)
HR interview on motivation and offshore or remote postings.
How to structure your answers
ongc interviewers score answers on structure and specificity, not just content. Use the STAR method for every behavioural question.
SSituationSet up the context in 1–2 sentences. Give just enough background for the story to make sense.
TTaskState your personal responsibility. What were YOU specifically accountable for, not the team.
AActionThis is the longest part. Describe the specific steps you took. Use 'I' not 'we'.
RResultQuantify if possible: numbers, percentages, timeline improvement. Then say what you learnt.
Common mistake:Saying "we did X" throughout. Interviewers score your individual contribution. If you can't separate what you did from what the team did, it signals low ownership.
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Campus Placement questions ongc asked
Sourced from 2+ candidate post-mortems. Hit Practice to answer any one with AI voice feedback.
- 01
Easy
Tell me about your final-year project. What was your specific contribution?
- 02
Easy
Walk me through a project from your final year. Why did you choose this stack? Where did it break?
- 03
Medium
Why TCS specifically? You've also applied to Infosys and Wipro, what's different about TCS for you?
- 04
Medium
Are you willing to relocate to Trivandrum or Bhubaneswar within 2 weeks of joining? And work in night shifts for client time-zones if needed?
- 05
Medium
Code: Given a string, find the first non-repeating character in O(n) using a single pass. Walk me through your approach before writing.
- 06
Hard
If you're given a 6-month-old project written in legacy Java by someone who's left, walk me through how you'd onboard yourself in week 1.
- 07
Easy
What's the difference between OOP and procedural programming? Give me a real-world example where one is clearly better than the other.
- 08
Medium
Tell me about a time you handled ambiguity. Specific story, please.
- 09
Medium
GenC Next aptitude follow-up: Explain how a hash table handles collisions. Now tell me which Indian app you've used that you suspect uses one heavily.
- 10
Medium
Accenture cares about 'innovation, inclusion, stewardship'. Pick one and tell me a college instance where you embodied it.
- 11
Medium
Reverse a linked list, then find the middle node in a single pass. Walk me through both, then explain the time/space complexity.
- 12
Medium
Tell me about a time in college you took ownership of something nobody asked you to. (LP: Ownership)