How to force Band 3(1800Mhz) for LTE on lg nexus g281?

I am using Reliance Jio(LTE service provider) on my nexus 5 g281 model in India .Reliance Jio works on 2 bands(band 5 & band 3) which are supported by nexus 5. I want to use band 3 for my LTE services as it provides higher speed for my ISP.

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