Thai and Tandoor Pte Ltd is an Indian restaurant at #02-136, Blk 632 Bukit Batok Central in Singapore's Bukit Batok neighbourhood, rated 4.4 on Google.
Indian restaurants in Singapore span two traditions: North Indian kitchens built around the tandoor, serving naan, kebabs and richer, tomato-and-cream curries, and South Indian ones centred on thosai, banana-leaf rice and sharper, peppery dishes. A good one grinds its spices fresh and cooks breads to order, so naan arrives blistered and light rather than sitting under a heat lamp. Heartland spots in HDB centres tend to be busiest at weekday lunch, when workers queue for set meals, and again on weekend evenings, so arriving early or booking ahead pays off. Kitchens will usually adjust the chilli heat if asked, worth remembering if you prefer a milder curry.
For anyone in Bukit Batok, Thai and Tandoor puts a well-rated Indian kitchen a short walk away, up on the second level of the town centre.