Step 1: Concept of Rāśis.
Rāśis refer to the twelve zodiac signs in Jyotiṣa Śāstra (Vedic astrology). Examples include Meṣa (Aries), Tulā (Libra), Vṛṣabha (Taurus), etc.
Step 2: Checking the given options.
- Nanda (A): Represents a type of Tithi, not a zodiac sign.
- Tulā (B): Refers to Libra, which is indeed a Rāśi.
- Bhadra (C): Refers to a Yoga, not a zodiac sign.
- Meṣa (D): Refers to Aries, which is indeed a Rāśi.
Step 3: Conclusion.
Thus, the two Rāśis mentioned are Tulā and Meṣa.