Explanation:

All codes are correct.
As part of Azadi ka Amrit Mahotsav, The Government of India is holding a week-long commemoration titled Vigyan Sarvatra Pujyate from February 22 to 28 simultaneously in 75 locations across the length and breadth of the country.

• As a feather in the cap, a science & technology mega expo, National Science Book Fair are being held in New Delhi’s Jawaharlal Nehru stadium .
• This event is jointly organised by Department of Science and Technology, Department of Biotechnology, CSIR, Ministry of Earth Sciences, Department of Atomic Energy, Department of Space, Indian Council of Medical Research, AICTE and DRDO under the leadership of the office of the Principal Scientific Officer to the Government of India and the Ministry of Culture.
• Vigyan Prasar, an autonomous organization of DST with a mandate to promote science communication in the country, is the coordinating agency.

The programmes have been grouped under four themes.

• The first theme is `from the annals of the history of S&T’.
• The second theme is, ‘Milestones of Modern S&T’.
• The third theme is `Swadeshi Paramparik Inventions and Innovations’.
• The fourth theme is `transforming India’.

Hence option 4th is correct.