Dr. Ladaniya has worked at ARS at Indian Institute of Horticultural Research, Bengaluru and the National Research Centre for Citrus (NRCC), Nagpur. During his tenure as the Director, NRCC was upgraded by the ICAR to the level of Central Citrus Research Institute. He has made outstanding contributions in developing post-harvest protocols for fresh citrus fruits and has laid a foundation of systematic post-harvest research on citrus fruits. His efforts led to development of quality standards for citrus and most of his technologies find place in package of practices published by APEDA (Agricultural and Processed Products Export Development Authority of India, Ministry of Commerce, India) for Nagpur mandarin. He is the President of the Indian Society of Citriculture and was also a crop (Citrus) Co-ordinator in All India Co-ordinated Research Project for Fruits. A new Regional Research Centre for Citrus (RRCC) has been started at Biswanath Chariali, Assam by CCRI under his stewardship.