The All India Online Vendors Association (AIOVA), which represents more than 3,500 online sellers did file a complaint against Flipkart/Amazon with Competition Commission of India (CCI) however, CCI did not find any violation of existing laws in Amazon or Flipkarts trade practices. IANAL but India does have Anti-Dumping and Pro-Competition laws but probably they are not updated for e-commerce. Amazon and Flipkart are able to find loop holes in it to continue their practices. Which is why Govt. imposed the marketplace cannot sell the products laws.
For Food delivery, the Restaurant Association is discussing the matter with Govt. Agencies. This article would be able to explain laws better : http://www.mondaq.com/india/x/808174/Antitrust+Competition/C...