Xiaomi India — 3g and 4g problem

Address:	Visakhapatnam, Andhra Pradesh, 530003
Website:	www.Mi. in

Sir i am kiran kumar i am purchased one Redmi note3 mobile in flipkart Sir its not working 3g and 4g. its working only 2g. sir when i select 3g or 4g its going to emergency call. I purchased in flipkart this product . I feel this is defective product plz solve this problem sir return policy they given but i cont found that problem with in return period.. i believe xioami company plz exchange this mobile and give xioami Redmi note3 another mobile..