MTS UP West Rate Cutter Plans MTS UP West Rate Cutter Plans details are updated daily on our website www.onlinerechargeplans.co.in. Sistema Shyam TeleServices Limited (SSTL), also known as Mobile TeleSystems and commonly referred to by the abbreviation MTS. It provides wireless voice, broadband Internet, messaging and data services in India. MTS India is a subsidiary of … [Read more...] about MTS UP West Rate Cutter Plans – Details of Type of Rate Cutters