Kanthari Peppers or Small Red Chili peppers are thin-walled, conical peppers of high pungency80 days to maturity. Suitable for growing in containers. Very popular in the cuisine of Kerala, India. Fruits start out light green, about 5cm long and proceed to become red. 
Growing Peppers:

 Start pepper seeds indoors in peat pots about 8 weeks before the last expected spring frost. Sow them 1/4" deep and keep the soil at 80-85 degrees F until germination; provide sunlight or a grow light for 12-16 hours a day. When the outdoor temperature reaches 60-65 degrees F during the day and no less than 50 degrees F at night, transplant the seedlings 12-16" apart. Exposing the plants to the weather for several hours a day before transplanting may help prevent shock. Peppers also grow well in containers or raised beds.