Finance Minister Nirmala Sitharaman announced this measure, citing a substantial increase in domestic production and a nearly 100-fold rise in mobile phone exports over the past six years as indicators of the industry's maturation.

In a remarkable development, India's mobile phone manufacturing sector has witnessed an extraordinary surge, with its value jumping 21-fold to Rs 4.1 lakh crore over the past decade.

Four candidates were caught using mobile phones during exams on Wednesday and their candidature for the entire examination stand cancelled, President of West Bengal Council of Higher Secondary Education Chiranjib Bhattacharya said in a statement.