Name the 1971 India-Pakistan war hero and Maha Vir Chakra awardee, who passed away recently.

57 year old, SpongeBob SquarePants creator Stephen Hillenburg passed away due to Motor Neuron Disease also known as ALS, a disease he had been diagnosed with in 2017. SpongeBob, an American animated series, which was aired for nearly two decades since its premiere in 1999 is Nickelodeon's biggest hit. Hollywood actor David Hasselhoff was starred in SpongeBob SquarePants Movie.

The two ships are scheduled to visit Chinese port of Qingdao from 21 to 26 April to participate in an International Fleet Review to celebrate the 70th anniversary of People's Liberation Army (PLA) Navy. INS Kolkata is the lead ship of the Kolkata-class stealth guided-missile destroyers of the Indian Navy. INS Shakti is tanker and supply ship. Over 60 countries would join the commemorative event for the PLA Navy's 70th founding anniversary on April 23.

US-based Boeing has retained its position as the world's largest planemaker for the seventh year in a row, delivering a record 806 aircraft in 2018. Overall, the company saw 893 net orders valued at $143.7 billion. Boeing was followed by its European rival Airbus which delivered 800 aircraft last year.

The Indian Coast Guard has launched 'Operation Oliva' as part of its annual mission to ensure the safe mid-sea sojourn of breeding Olive Ridley sea turtles in Gahirmatha marine sanctuary area, Devi river mouth, and Rushikulya beach of Odisha. The turtle conservation programme is executed in a joint coordination with the forest department of Odisha to keep watch and vigil on illegal fishing along the turtle concentration zone. As a part of the operation, a fleet of ships and a service aircraft has been pressed into service besides the coast guard has also organised interactive sessions with fishermen communities to sensitise them on the legal embargo on fishing during ridleys' nesting season.

The Indian Air Force (IAF) conducted combined guided weapons firing of Surface-to-Air Missiles from the Air Force Station located at Suryalanka, Andhra Pradesh. The first-of-its-kind exercise for the Air Force was code-named 'CROSS BOW-18'. CROSS BOW-18 saw the successful firing of four different classes of missiles like Akash, Spyder, OSA-AK-M and IGLA.

Noted mimicry artiste Nerella Venumadhav had passed away after a brief illness in Warangal city. He was 85. Venumadhav served as MLC in 1971 in undivided Andhra Pradesh. He rose to international fame after his enthralling performance at the United Nations. He has conferred scores of awards, including the Padma Shri in 2001.

Demise of Hindi fiction writer and essayist,Jnanpith awardee as well, Krishna Sobti passed away,in New Delhi at the age of 93. She was born on 18th February, 1925 in Gujarat Punjab, British India. Her writings insinuate Punjabi, Urdu, and afterwards Rajasthani languages. Her works mainly underscores the issues of female identity. Notable writings- Mitro Marajani, Daar se Bichuchuri, Surajmukhi Andhere Ke. Notable Awards- Sahitya Akademi Award (1980) , Sahitya Akademi Fellowship (1996) , Jnanpith Award (2017).

Former White House economist and Princeton University professor Alan Krueger passed away. He was 58 and an American economist. Krueger served as chief economist at the Department of Labor under President Bill Clinton and chair of the Council of Economic Advisers from 2011 to 2013 under former President Barack Obama.

Legendary Assamese singer Dipali Borthakur popularly referred to as the "Nightingale of Assam" passed away. She was 77. Borthakur had been suffering from a motor neuron disease for the last four decades. For her outstanding contributions to the field of arts, Borthakur was honored with the Padma Shri award in 1998. The Silipi Bota conferred on her by the state government in 2010 and the Aideu Handique Silpi Award in 2012 are among the numerous accolades she received.

Former Test cricketer Rajinder Pal, who represented India in one Test match, passed away at his Dehradun residence on May 9, 2018. Rajinder pal was 80, and is survived by his wife, two sons and a daughter. He was right-arm medium pacer and played his only Test match against England during the 1963-64 series at the Brabourne Stadium in Mumbai. He was right-arm medium pacer and played his only Test match against England during the 1963-64 series at the Brabourne Stadium in Mumbai.