Answer: A) Hooghly River Explanation: The boring of India’s first underwater rail tunnel under the Hooghly River for establishing metro link between Howrah and Kolkata has completed before its scheduled deadline of July 2017. The tunnel is 16.6 km long, out of which 10.8 km runs under the ground. Of this 10.8 km, 502 metres is under the water and the whole thing connects Howrah to the west and Salt lake to the east. It will have 12 stations and six will be underground. Estimated cost of the entire project is $750 million or about Rs 5,000 crores. The final commissioning of the project is expected by December 2019, following which it will be operational. The project is built by Afcons Transtonnelstroy and implemented by Kolkata Metro Railway Corporation Ltd (KMRCL).

Answer: C) Draft blueprint of the ASEAN Charter Explanation:

Answer: A) Rahul Doshi Explanation:

Answer: A) N. Chandrababu Naidu Explanation: Chief Minister of Andhra Pradesh, N Chandrababu Naidu has been selected for another prestigious award. The US India Business Council has selected the CM for award of ‘Transformative Chief Minister’ and Naidu would be receiving coveted award at second annual West Coast summit which to be held in California on May 8, 2017.

Answer: A) Aditya Puri Explanation: American financial magazine Barron's has listed the name of HDFC Bank Managing Director Aditya Puri’s name in its list of world’s 30 best CEOs. He holds the 23rd position in the list beating social media giant Facebook’s CEO Mark Zuckerberg who is listed on the 30th spot.

Answer: D) Sweat equity shares Explanation: A sweat equity share is an equity share issued by the company to employees or directors at a discount or for consideration other than cash for providing know-how or making available rights in the nature of intellectual property rights or value additions.

Answer: D) New Delhi Explanation: State-run NTPC said the company has forayed into electric vehicle charging business and has set up first such charging stations at its offices in Delhi and Noida. Adding that the move will push demand for electric vehicles, an official said, "The main objective in setting up the charging points is to be part of promoting clean energy transportation."