Question:  Future Retail is one operating company of what company started by Kishore Biyani?

Context paragraphs:
Hamlet (1954 film): Hamlet (Urdu: हेमलेट‎ ) is a 1954 Hindi tragedy drama film, produced and directed by Kishore Sahu.  The film was a free adaptation of Shakespeare's tragedy, with Sahu playing Hamlet as well as writing the screenplay, while the dialogues were by Amanat Hilal and B. D. Verma.  It was produced under the "Hindustan Chitra" banner, a production company started by Sahu in 1944.  It was Ramesh Naidu's debut film as a music composer.  The film starred Mala Sinha, Kishore Sahu, Venus Banerji, Kamaljeet and Jankidas.

Big Bazaar: Big Bazaar is an Indian retail store that operates as a chain of hypermarkets, discount department stores, and grocery stores.  The retail chain was founded by Kishore Biyani under his parent organisation Future Group, which is known for having a significant prominence in Indian retail and fashion sectors.  Big Bazaar is also the parent chain of Food Bazaar, Fashion at Big Bazaar (abbreviated as "fbb") and eZone where at locations it houses all under one roof, while it is sister chain of retail outlets like Brand Factory, Home Town, Central, eZone, etc.

Kishore Biyani: Kishore Biyani is an Indian businessman.  He is the founder and chief executive officer (CEO) of Future Group and also the founder of retail businesses such as Pantaloon Retail and Big Bazaar.

North Absheron Operating Company: North Absheron Operating Company (NAOC) was an international petroleum consortium based in Baku, Azerbaijan created to explore and develop the Dan Ulduzu and Ashrafi prospects in the Azerbaijani sector of the Caspian Sea.  The company started its operations in 1997.  On March 7, 2000 the company stopped operations after the management of company considered the contract was not financially profitable.

Go-Op (train operating company): Go-Op (full name Go!  Cooperative Ltd), is an open access train operating company which is currently proposing to operate a service between Taunton and Swindon, via Westbury.  It aims to become the first cooperatively owned train operating company in the United Kingdom, to improve access to the public transport infrastructure through open access rail services linking main lines to smaller market towns, and co-ordinating services with light rail and bus links and car pools.  Go-Op intended to begin operating rail services in the spring of 2014, however difficulties in obtaining rolling stock and severe financial difficulties incurred by their main partner The Co-operative Bank have delayed these plans.

Central (Hypermarket): Central is an Indian retail chain operated by Future Retail Limited, the operating company of Future Group which also runs another hypermarket chain, Big Bazaar.

Sports Box: Sports Box, shortened to SBX, is an Indian restaurant chain focusing on sports theme based casual dining.  Sports Box was founded by Sunil Biyani, brother of Kishore Biyani, head of Galaxy Entertainment.

Saravana Stores: Saravana Stores is a chain of retail stores, located in T Nagar, Purasawalkam, Chrompet and Padi, Chennai (Anna Nagar); selling textiles, jewellery, vessels and a wide range of consumer products.  It is the largest family owned business retail chain in India.  According to Kishore Biyani of bigbazaar, it is India’s No 1 retail store in one locality.  The group has been growing rapidly over the past five-year and are likely to branch out to metro cities like Mumbai, Delhi and Bangalore, though the group is conservative in business.  New Saravana Selvaratnam was opened in Tirunelveli in December 23, 2016.  New Saravana Selvaratnam was opened in Madurai in May 5, 2017

Future Group: "Future Group is an Indian private conglomerate, headquartered in Mumbai.  The company is known for having a significant prominence in Indian retail and fashion sectors, with popular supermarket chains like Big Bazaar and Food Bazaar, lifestyle stores like Brand Factory, Central etc. and also for having a notable presence in integrated foods and FMCG manufacturing sectors.  Future Retail (initially Pantaloons Retail India Ltd (PRIL)) and Future Lifestyle Fashions"', two operating companies of Future Group, are among the top retail companies listed in BSE with respect to assets, and in NSE with respect to market capitalization.

Structural subordination: In corporate finance, Structural subordination is the concept that a lender to a company will not have access to the assets of the company's subsidiary until after all of the subsidiary's creditors have been paid and the remaining assets have been distributed up to the company as an equity holder.  For example, if a lender loans money to a parent company, that lender is structurally subordinated to a lender who loaned money to a subsidiary operating company which is lower down in the company organizational structure.  The operating company lender is structurally senior, and the parent company lender can only be repaid from the operating assets after the operating company lender has been repaid.

Supporting paragraphs: Kishore Biyani Future Group
Answer: Future Group