Fashion Advice from Northeast guys

Hello from Delhi! I really admire how northeast guys have a great fashion sense. They have good clothes, not necessarily from an expensive brand yet they manage to pull off some good outfits that I've noticed a lot. Can you guys advice on where you buy your clothes from, online or offline, any particular chain or market in Delhi... Noticed the same in Kashmiris too, i usually shop at mainstream chain stores. H&M, uniqlo, Westside, Lifestyle etc. please suggest more, also is myntra/ajio good? PS: i know NE guys usually are more fit compared to people from other states probably due to hilly terrain and different eating habits. And i will look better in the same clothes if i get better in shape but still, would love to know a place to get good clothes.