Silver Touch Technologies rallied 4.69% to Rs 189.55 after securing an order from Rites to develop an AI-based detailed project report appraisal platform, PARAKH. Shares of Rites declined 3.42% to Rs 227.60 on the BSE. The contract is valued at Rs 6.27 crore. Silver Touch will design and deploy an AI-native platform for appraising Detailed Project Reports, featuring three self-hosted large language models (Llama 3.1 70B, Mistral 7B and Qwen 2.5 7B) running on NVIDIA A100 GPU infrastructure within RITES' secure data centre. The solution will integrate hybrid Retrieval-Augmented Generation combining semantic vector search with keyword search across more than 1,000 historical DPRs. Additional capabilities include GIS integration with the PM GatiShakti National Master Plan, BIM/IFC interoperability, geospatial analytics, and an intelligent document processing pipeline capable of analysing DPRs ranging from 500 to 5,000 pages. Silver Touch said the platform will serve as the AI engine for RITES to appraise major infrastructure projects across railways, highways, bridges, ports, airports, metro systems and tunnels.