Bengaluru FC has already secured the signatures of North Korean striker Kim Seng-Yong and Seiminlen Doungel, a media release said today.
Named the League's midfielder of the 2014-15 season, Lyngdoh has inked a two-year extension that keeps him with the southern India side till the end of the 2016-17 season.
Fellow-midfielder and former England under 20 captain Walker too was handed a one-year deal with the club having the option to add another year to it.
Youngster Shankar Sampingiraj, who was one of the League's impressive players this season with consistently mature performances, was awarded a new three-year deal.
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Rino Anto, Lalchhuanmawia, Udanta Singh, Lalthuammawia Ralte, CK Vineeth and Beikhokhei Beingaichho were also handed two-year deals while Siam Hanghal is on a one year agreement with the club having the choice to extend it at the end of the season, the release said.
"We wish the boys all the best for the coming season and have absolute confidence that they will only get better," he added.