Content Curator | Updated on - Mar 31, 2026

The Ph.D. in Computational Natural Sciences (CNS) at the International Institute of Information Technology, Hyderabad (IIIT-H) is a unique, full-time interdisciplinary doctoral programme that bridges the fields of natural sciences (physics, chemistry, biology, bioinformatics) and computational methods. Offered through the Centre for Computational Natural Sciences and Bioinformatics (CCNSB), the programme is designed for students from both science and engineering backgrounds who wish to apply computational approaches to fundamental scientific problems. The typical duration is around 5 years, with all coursework completed in the first year (2 semesters) followed by research work for the thesis. The annual tuition fee is Rs. 60,000, and all full-time Ph.D. students receive a monthly stipend of Rs. 31,000 to Rs. 35,000. Admission is through the PGEE (Postgraduate Entrance Examination) conducted by IIIT Hyderabad, with only the General Aptitude (GA) paper required for CNS applicants. The programme is popular among students from M.Sc. (Physics, Chemistry, Biology, Bioinformatics) and B.Tech./M.Tech. (CS, IT, Biotech, Bioinformatics) backgrounds.

Admissions for the Monsoon 2026 batch are currently ongoing. The PGEE 2026 application portal is open until 31st March 2026, and the entrance exam is scheduled for 2nd May 2026.

Key Points

The Ph.D. CNS programme is one of the very few doctoral programmes in India that integrates natural sciences (physics, chemistry, biology) with computational methods and computer science.
The programme is offered through CCNSB (Centre for Computational Natural Sciences and Bioinformatics), a dedicated interdisciplinary research centre at IIIT-H.
All full-time Ph.D. students receive a monthly stipend of Rs. 31,000 to Rs. 35,000, with additional earning potential through Teaching Assistantship (TA).
The curriculum has three breadth streams (Sciences, Techniques/Applied Areas, and Computer Science) plus depth courses, ensuring students develop both scientific and computational expertise.
Students from diverse backgrounds (M.Sc. in Physics/Chemistry/Biology, B.Tech. in CS/Biotech/Bioinformatics) are eligible, making it a truly interdisciplinary programme.
Only the General Aptitude (GA) paper is required in the PGEE for CNS applicants, making it accessible to students from non-engineering backgrounds.

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Highlights
Fees
Admission
Scholarships
Ranking
FAQs

IIIT Hyderabad Latest Updates and News

08 Apr, 2026 PGEE 2026 entrance exam will be held on May 2, 2026, for M.Tech/MS(R)/Ph.D programs. The interviews are scheduled from June 10 to 13, 2026. Read more.

06 Apr, 2026 IIIT Hyderabad has released Fee structure 2026 for Ph.D Computational Natural Sciences programs. The total academic fee is ₹ 1.8 Lakhs. Check details.

IIIT-H Ph.D. CNS Fees

The Ph.D. (CNS) at IIIT Hyderabad is highly subsidised, with an annual tuition fee of Rs. 60,000. All full-time Ph.D. students receive a monthly stipend of Rs. 31,000 to Rs. 35,000, which more than covers tuition and living expenses. The total tuition for the programme (typically 5 years) is Rs. 3,00,000, but the net cost to the student is effectively minimal given the stipend and financial support available.

Fee Components

Fee Component	Per Year (Rs.)	Total (5 Years) (Rs.)
Tuition Fee	60,000	3,00,000
Hostel Charges (approx.)	72,000 (Rs. 6,000/month)	3,60,000
Mess Charges (approx.)	60,000 (Rs. 5,000/month)	3,00,000
Total Fees (without stipend)	1,92,000	9,60,000

All full-time Ph.D. students receive a monthly stipend of Rs. 31,000 to Rs. 35,000, depending on the stage of the student in the programme.
Ph.D. students may earn additional stipend through Teaching Assistantship (TA).
Hostel and mess charges are paid semester-wise, before the start of each semester.
SBI Scholar Loan of up to Rs. 40 Lakhs is available to all admitted students without the need for any security.
Corporate fellowships with higher stipends are available to selected research students.
The typical duration of the Ph.D. programme is 5 years; fees are calculated accordingly.

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IIIT-H Ph.D. CNS Admission 2026

Admissions to the Ph.D. (CNS) programme at IIIT Hyderabad are conducted primarily through the PGEE (Postgraduate Entrance Examination). For CNS applicants, only the General Aptitude (GA) paper is required in the written exam. The PGEE 2026 application portal is currently open, with the deadline on 31st March 2026. Shortlisted candidates are called for an on-campus interview, and the final selection is based solely on interview performance. The programme accepts students from a wide range of science and engineering backgrounds.

Important Dates

Event	Date
PGEE Application Portal Opens	20th February 2026
PGEE Application Portal Closes	31st March 2026
PGEE Entrance Exam	2nd May 2026 (2:00 PM - 5:00 PM)
Ph.D. Interviews (On-Campus)	12th & 13th June 2026
Application Fee (Non-refundable)	Rs. 3,100

Exam	Event	Date
PGEE 2026 (IIIT Hyderabad)	Application Opens	20th February 2026
PGEE 2026 (IIIT Hyderabad)	Application Closes	31st March 2026
PGEE 2026 (IIIT Hyderabad)	Entrance Exam	2nd May 2026

For Ph.D. in CNS, only the General Aptitude (GA) paper is required in the PGEE. GATE score can be used for direct interview shortlisting.

The dates mentioned above are tentative and subject to change.

Eligibility Criteria

M.Sc. in fundamental sciences (Physics, Chemistry, Biology, Biotechnology, Bioinformatics, or related areas), or M.E./M.Tech./B.E./B.Tech. in CS/IT/Biotech/Bioinformatics/BioMed, or MCA.
4-year B.S. with Mathematics is also eligible.
A minimum of 60% or equivalent in the qualifying degree is required for admission.

Admission Process

Register online and fill the application form on the PGEE portal (admportal.iiit.ac.in) before the deadline.
Pay the non-refundable application fee of Rs. 3,100.
Appear for the PGEE computer-based entrance examination (General Aptitude paper only for CNS).
Shortlisted candidates are invited for an on-campus interview at IIIT Hyderabad.
Final selection is based solely on interview performance; the decision of the interview committee is final.
Candidates with a high GATE score, GPA of 7+ from CFTIs, or valid NET qualification may be directly shortlisted for the interview without appearing for PGEE.

IIIT-H Ph.D. CNS Scholarships 2026

IIIT Hyderabad provides comprehensive financial support to all admitted Ph.D. (CNS) students. The monthly stipend of Rs. 31,000 to Rs. 35,000 effectively makes the programme financially self-sustaining for most students. Additional support is available through travel grants and institutional loan schemes.

Scholarships and Financial Support

Scholarship / Financial Support	Amount / Benefit	Eligibility
Ph.D. Stipend	Rs. 31,000 to Rs. 35,000 per month	All full-time Ph.D. students
Teaching Assistantship (TA)	Additional stipend	Ph.D. students who take up TA duties
Conference Travel Support	Travel expenses covered	Students presenting published research
Corporate Fellowships	Higher stipend	Selected research students
Alumni Pay-it-Forward Fund	Tuition support (from 2nd semester)	Students with family income below Rs. 8 LPA
SBI Scholar Loan	Up to Rs. 40 Lakhs (without security)	All admitted students

The stipend amount depends on the stage of the student in the Ph.D. programme and is continued based on satisfactory academic and research performance.
Financial assistance requires approximately 20 hours of project/research work per week.
The Pay-it-Forward scheme requires the student to pay the tuition fees of another student after graduation and employment.
SBI Scholar Loan is available even if the applicant's family has other existing loans.

IIIT Hyderabad Ph.D Computational Natural Sciences Ranking

Collegedunia Ranking

#15 out of 500 in India 2025

#2nd in Hyderabad

#3 in Telangana

Indiatoday Ranking

#14 out of 269 in India 2025

#1st in Hyderabad

#1 in Telangana

The Week Ranking

#10 out of 286 in India 2025

#1st in Hyderabad

#2 in Telangana

NIRF Ranking

#38 out of 300 in India 2025

#2nd in Hyderabad

#3 in Telangana

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IIIT-H Ph.D. CNS FAQs

Ques. What makes the Ph.D. CNS programme at IIIT Hyderabad unique compared to a regular Ph.D. in Biology or Chemistry?

Ans. The Ph.D. CNS programme is fundamentally interdisciplinary. Unlike a traditional Ph.D. in Biology or Chemistry, the CNS programme requires students to develop expertise in both natural sciences and computational methods. The curriculum spans three breadth streams: Sciences (thermodynamics, quantum mechanics, molecular biology), Techniques (numerical methods, bioinformatics), and Computer Science (programming, databases). This dual expertise prepares graduates for research at the intersection of computation and natural sciences, which is increasingly in demand in areas like drug discovery, computational biology, and materials science.

Ques. Can a student with a B.Tech. in Computer Science apply for the Ph.D. CNS at IIIT Hyderabad?

Ans. Yes, B.Tech./M.Tech. graduates in CS, IT, Biotechnology, Bioinformatics, and BioMed are eligible to apply for the Ph.D. CNS programme. The curriculum is designed to accommodate students from both science and engineering backgrounds, with the breadth requirements ensuring that CS students gain sufficient grounding in natural sciences and vice versa.

Ques. What is the CCNSB at IIIT Hyderabad and what research does it conduct?

Ans. CCNSB (Centre for Computational Natural Sciences and Bioinformatics) is the dedicated research centre for the CNS programme at IIIT-H. The centre conducts research at the interface of computation and natural sciences, including areas such as computational biology, structural bioinformatics, molecular dynamics simulations, quantum computing applications in chemistry, and computational drug discovery. The centre has faculty with expertise spanning physics, chemistry, biology, and computer science.

Ques. Is the Ph.D. CNS programme suitable for students who want to work in the pharmaceutical or biotech industry?

Ans. Yes, the Ph.D. CNS programme is well-suited for students interested in the pharmaceutical and biotech industries. The programme's focus on computational approaches to biological and chemical problems is directly relevant to drug discovery, protein structure prediction, molecular modelling, and bioinformatics, all of which are high-demand skills in the pharmaceutical and biotech sectors. Graduates have gone on to work at research labs, biotech companies, and pharmaceutical firms in India and abroad.

Ques. How does the coursework in the Ph.D. CNS programme work for students from different backgrounds?

Ans. The CNS programme has a flexible curriculum that adapts to the student's background. Students from M.Sc. (Physics/Chemistry/Biology) backgrounds will focus more on the Computer Science breadth stream, while students from B.Tech. (CS/IT) backgrounds will focus more on the Sciences breadth stream. The faculty advisor helps each student choose the appropriate courses based on their background and research area. All students must satisfy requirements in all three breadth streams and complete four depth courses at the 4000 level or above.

Ques. Is there a Winter admission cycle for the Ph.D. CNS programme at IIIT Hyderabad?

Ans. Yes, IIIT Hyderabad conducts Winter Research Admissions for Ph.D. programmes (for the Spring semester) in addition to the Monsoon PGEE cycle. The Winter 2025 admissions (for Spring 2026) were conducted with applications open from October to November 2025. The next Winter admissions cycle (for Spring 2027) is expected to open around October 2026. Candidates who miss the Monsoon PGEE cycle can apply through the Winter admissions route.