Sunil,
Please find the configuration guide on the below link:-
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/37e/consolidated_guide/b_37e_consolidated_3850_cg.html
or based on layer 2/3 any feature you can select from below:
http://www.cisco.com/c/en/us/support/switches/catalyst-3850-series-switches/products-installation-and-configuration-guides-list.html
HTH
Regards
Inayath
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