HILL INFRA TECH SERVICES LTD (Subsidiary of HLL Lifecare Limited, a Govt. of India Enterprise) Infrastructure Development Division, HLL Bhavan, Golden Jubliee Block, Poojappura, Thiruvanantapuram -695 012, Kerala. Phone: 0471-2775569 Also Read: Kerala state science & technology museum Kerala Medical Services Corporation Ltd Thiruvananthapuram Rajiv Gandhi Centre for biotechnology Thiruvananthapuram