Hi @Arun_Kumar
To gain access to a chipset that has 3G/4G/5G from Qualcomm, you will either need to work through a Qualcomm licensee, or become a Qualcomm Licensee. The chips that we make available to the open market and on development boards do not have 3G/4G/5G capabilities.
Full disclosure: I am an employee of Qualcomm Canada, any opinions I have expressed in this or any other post may not reflect the opinions of my employer.