The former Chief Justice of India was replaced by Justice TS Thakur on December 2, 2015. Serving as the CJI for nearly 14 months, HL Dattu hogged the headlines throughout the year.
Under his tenure as CJI, 1993 Mumbai blast convict Yakub Memon was hanged on July 30, 2015. His execution set off a controversial debate on the death sentence in India.
In a historic judgement on October 16, 2015, the Supreme Court struck down the NJAC Act, 2014 seeking to replace the decades old collegium system of appointing judges in the higher judiciary. On this, HL Dattu ruled out any confrontation with the government, saying that the verdict would not affect the relationship between the judiciary and the executive.
After completion of his stint as CJI, HL Dattu now looks forward to become the National Human Rights Commission Chief.
Last year, India's child rights activists and founder of 'Bachpan Bachao Andolan' Kailash Satyarthi made India proud by winning the prestigious Nobel Peace Prize, which he shared with Malala Yousafzai of Pakistan.
In the year 2015, lamenting that children were not a 'political priority' in the country, the Nobel laureate appealed to the Centre to implement the toughest law to put an end to their exploitation.
This year, Kailash Satyarthi along with Prime Minister Narendra Modi was named among the 50 greatest leaders in the world by Fortune magazine in its annual list of 'extraordinary' men and women transforming business, government and philanthropy.
He was also conferred with Harvard University's prestigious humanitarian award for this year, in recognition of his continuing contribution to the cause of child rights.
Delivering his speech at the United Nations public lecture, Kailash Satyarthi indicated education as the key to end poverty and unemployment in India.
Dr Raghuram Rajan
There was uncertainty about the Indian economy when Raghuram Rajan took over as the 23rd Governor of the RBI which is also one of the most powerful monetary institutions in Asia. But, with his intelligence and true sense of predictability, Rajan proved this year as a milestone for Indian economy. 2015 can be called as a year of reforms as Rajan has made certain changes in the Indian banking sector. From empowering banks to act against defaulters, to measures to recognize and prevent a rise in bad loans or to allow 23 new banks to function, Rajan has done it all to silence his critics.
With his strong control over the RBI policies and credit rates, Rajan ranked No.3 in Global Finance's central bank governor ratings this year.
The Indian-born chief executive of US-based technology major Microsoft, Satya Nadella, visited India for the second time in November after PM's visit to Silicon Valley. He announced a string of partnerships, programmes and products to help Indian organisations and governments explore unchartered business areas and enrich customer and citizen experiences.
The Microsoft CEO on his one-day visit to Mumbai delivered a keynote address at 'Microsoft's Future Unleashed'. He met Communications and IT Minister Ravi Shankar Prasad to discuss company's plan for providing broadband connectivity in Indian villages. He also met various industry leaders like Mahindra Group Chairman Anand Mahindra, Axis Bank head Shikha Sharma and Tata Starbucks CEO Avani Davda.
The Indian-born CEO of the technology giant 'Google' Sundar Pichai made his first maiden visit to India in December 2015. During his first visit, Pichai spoke at The Google for India' seminar and made a string of announcements, promising to boost the digital faith of the nation. He expressed his plans of promoting internet in India through installing Wi-Fi at railway stations and training two million android developers by working closely with more than 30 universities across the country. Pichai met President Pranab Mukherjee, Prime Minister Narendra Modi, Railway Minister Suresh Prabhu, Communication Minister Ravishankar Prasad and Finance Minister Arun Jaitley among top dignitaries during his maiden journey after becoming Google CEO.