What restrictions apply to flying RC and UAV planes in India at very low altitudes?
The Director General of Civil Aviation has published this public notice:


  GOVERNMENT OF INDIA OFFICE OF THE DIRECTOR GENERAL OF CIVIL AVIATION
  OPPOSITE SAFDARJUNG AIRPORT, NEW DELHI – 110 003 
  
  PUBLIC NOTICE   File No. 05-13/2014-AED Dated: 7th October, 2014 
  
  Subject: Use of Unmanned Aerial Vehicle (UAV)/ Unmanned Aircraft
  Systems   (UAS) for Civil Applications 
  
  Of late, lots of interests are being shown for civil use (both
  commercial and recreational) of UAS in the country. International
  Civil Aviation Organization (ICAO) is yet to publish Standards And
  Recommended Practices (SARPs), as far as certification and operation
  of civil use of UAS is concerned. 
  
  UAS has potential for large number of civil applications. However, its
  use besides being a safety issue, also poses security threat. The
  Airspace over cities in India has high density of manned aircraft
  traffic. Due to lack of regulation, operating procedures/ standards
  and uncertainty of the technology, UAS poses threat for air collisions
  and accidents.  
  
  The civil operation of UAS will require approval from the Air
  Navigation Service provider, defence, Ministry of Home Affairs, and
  other concerned security agencies, besides the DGCA. DGCA is in the
  process of formulating the regulations (and globally harmonize those)
  for certification &amp; operation for use of UAS in the Indian Civil
  Airspace. Till such regulations are issued, no non government agency,
  organization, or an individual will launch a UAS in Indian Civil
  Airspace for any purpose whatsoever. The above is for strict
  compliance. 
  
  Director General of Civil Aviation