I have visited the outlet of haldiram noida hundreds of time. The food served it really fresh n tempting. Besides the chatpati variety of chats, they have great speciality in north Indian, south Indian food. Recently they hv also started serving amritsari naan n Punjabi platter. I simply visit this outlet for munching grilled sandwiches n raj kachoris.
Also, not to forget they serve really really tempting sweets n cakes. The quality of cake is really great. Also they provide colorful candles n decoration on cake for absolutely free. My personal flavor in sweets is maal puah and moong daal halwa( which is only available in winters) .